The olfactorysystem is the sensory system used for olfaction , or the sense of smell. Most mammals and reptiles have two distinct parts to their olfactorysystem a main olfactorysystem and an accessoryolfactorysystem . The main olfactorysystem detects volatile, airborne substances, while the accessoryolfactorysystem senses fluid phase stimuli. Behavioral evidence indicates that most often, the stimuli detected by the accessoryolfactorysystem are awareness The olfactorysystem is often spoken of along with the gustatory system as the chemosensory senses because both transduction physiology ... Vesalius Fabrica , 1543. Human Olfactory bulb s and Olfactory tracts outlined in red Function The mechanism of the olfactorysystem can be divided into a peripheral one, sensing an external Stimulus physiology ... are integrated and processed in the central nervous system . Peripheral Image Olfactory system.svg thumb 280px 1 Olfactory bulb 2 Mitral cell s 3 Bone 4 Nasal Epithelium 5 Glomerulus olfaction ... in each hemisphere of the human brain In mammals, the main olfactorysystem detects odorants that are inhaled ... belongs to the peripheral nervous system . This nerve terminates in the olfactory bulb , which belongs to the central nervous system . The complex set of olfactory receptors on different olfactory ... the odor code is primarily temporal or spatial. Clinical implications Damage to the olfactorysystem ... can cause anosmia . Doctors can detect damage to the olfactorysystem by presenting the patient ... bulb and the accessoryolfactory bulb. It is made up of the following three layers of cells. style ... Axel won the 2004 Nobel Prize in Physiology or Medicine for their work on the olfactorysystem. See also Olfactory transduction Olfactorysystem Sensory system Commons Category Olfactorysystem Category Olfactorysystem zh min nan Hi kak h th ng ar ca Sistema olfactiu de Riechbahn ... ru simple Olfactorysystem tl Sistemang pang amoy uk ... more details
Infobox Weapon name M26 Modular Accessory Shotgun System image File PEO M26 MASS on M4 Carbine.jpg 300px caption The M26 MASS mounted on the M4 Carbine M4 carbine. origin flag United States type Shotgun Type selection is ranged yes Service history service 2003 present used by United States wars Iraq War Production history designer Ira Kay design date 1990s manufacturer C More Systems unit cost production date number variants XM26 General specifications spec label weight 3.31 lb 1.5 kg length 19.7 in 500 mm stock extended 13.8 in 350 mm stock folded part length 7.75 in 180 mm width height Ranged weapon specifications cartridge caliber Gauge bore diameter 12 gauge action Manually operated straight pull bolt action rate velocity range max range feed 3 or 5 round detachable box Magazine firearms magazine sights None Picatinny rail MIL STD 1913 rail provided for optics The M26 Modular Accessory Shotgun System MASS is a developmental under barrel shotgun attachment for the M16 rifle M16 M4 carbine M4 family of United States Military of the United States military firearm s. It can also be fitted with a pistol grip and collapsible Stock firearm buttstock to act as a stand alone weapon. Background ... de M26 Modular Accessory Shotgun System ko M26 MASS ja M26 MASS pl Strzelba XM26 LSS ru M26 Modular Accessory Shotgun System zh M26 ... M26 mounted on an M4A1 carbine. The M26 MASS is a militarized version of the Lightweight Shotgun System ... accessory weapons which could be mounted under the standard issue M16 rifle or M4 carbine ... Masterkey KAC Masterkey system, which dates back to the 1980s and originally comprised a shortened ... operated system. The detachable magazine offers quicker reloading and a quicker change of ammunition ... XM26 LSS https peosoldier.army.mil factsheets SW IW M26.pdf M26 12 Gauge Modular Accessory Shotgun System MASS Fact sheet http www.cmore.com C More Systems http www.securityarms.com 20010315 galleryfiles ... more details
wiktionary accessoryAccessory may refer to Accessory legal term , a person who assists a criminal but is not present at the crime Accessory band , with members Dirk Steyer and Ivo Lottig Fashion accessory , i.e. an item used to complement a fashion or style Video game accessory , a piece of hardware used in conjunction with a video game console for playing video games Accessory bone Accessory nucleus , in anatomy, a cranial nerve nucleus Accessory nerve Accessory suite , a secondary dwelling on a parcel of land Rental accessories and attachments , accessories used in the rental industry Cable accessories for connecting and terminating cables See also lookfrom intitle Access disambiguation disambig ko ja th ... more details
the olfactory bulb plays this role for the olfactorysystem . Accessoryolfactory bulb The accessory ... of the accessoryolfactorysystem . It receives axonal input from the vomeronasal organ , a distinct ... SystemOlfactorysystemOlfactory Components Artery Vein Acronym BrainInfoType hier BrainInfoNumber 261 MeshName Olfactory Bulb MeshNumber A08.186.211.577.699.573 NeuroLex Olfactory bulb NeuroLexID birnlex 1137 DorlandsPre b 26 DorlandsSuf 12200284 The olfactory bulb is a structure of the vertebrate ... web url http www.sci.uidaho.edu med532 olfacbulb.htm title olfactory bulb format work accessdate 2009 11 20 ref Anatomy In most vertebrates, the olfactory bulb is the most Anatomical terms of location Directional terms rostral forward part of the brain. In humans, however, the olfactory bulb is on the inferior bottom side of the brain. The olfactory bulb is supported and protected by the cribriform plate of the ethmoid bone , which in mammals separates it from the olfactory epithelium , and which is perforated by olfactory nerve axons. The bulb is divided into two distinct structures the main olfactory bulb and the accessoryolfactory bulb. Main olfactory bulb The main olfactory bulb has a multi ... stimuli. Like the main olfactory bulb, axonal input to the accessoryolfactory bulb forms synapses with mitral cells within glomeruli. However, mitral cells in the accessoryolfactory bulb project ... Basal forebrain Olfactorysystem Commons Category Olfactory bulb Category Olfactorysystem Category ...Infobox Brain Name Olfactory bulb Latin bulbus olfactorius GraySubject 189 GrayPage 826 Image 1543,Vesalius OlfactoryBulbs.jpg Caption Vesalius Fabrica , 1543. Olfactory Bulbs and Olfactory tracts outlined in red Image2 mouse MOB three color.jpg Caption2 Coronal image of mouse main olfactory bulb cell ... cell layer The olfactory bulb transmits smell information from the nose to the brain, and is thus ... from olfactory nerves, made up of the axons from approximately ten million olfactory receptor neuron ... more details
Neural Regeneration and the Peripheral OlfactorySystem volume 269 issue 1 pages 33 49 journal The Anatomical ... Sackler Olfactorysystem Epithelial types Commons category Olfactory epithelium DEFAULTSORT Olfactory Epithelium Category Olfactorysystem de Riechschleimhaut fa fr pith lium olfactif pt ...Infobox Anatomy Name Olfactory epithelium Latin GraySubject 223 GrayPage 996 Image Gray857.png Caption Section of the olfactory mucous membrane. Image2 Gray772.png Caption2 Plan of olfactory neurons. System MeshName Olfactory Mucosa MeshNumber A04.531.520.573 The olfactory epithelium is a specialized ... last Moran first David T. title The fine structure of the olfactory mucosa in man volume 11 pages 721 ... first3 BW last4 Lovell first4 MA issue 5 ref The olfactory epithelium is the part of the olfactorysystem directly responsible for detecting odor s. Layers of olfactory epithelium Olfactory epithelium consists of three distinct types of cells Olfactory cells Supporting cells Basal cells Olfactory cells The olfactory cells of the epithelium are bipolar neurons which congregate to form the olfactory ... from Bowman s glands located in the lamina propria of the olfactory mucosa . Supporting cells Analogous to neural glial cells, the supporting cells a.k.a. Sustentacular cell s of the olfactory epithelium function as metabolic and physical support for the olfactory cells. Histologically, the supporting ... of supporting cells are more apically located than those of the other olfactory epithelial cells. Basal cells Resting on the basal lamina of the olfactory epithelium, basal cells are stem cells capable of division and differentiation into either supporting or olfactory cells. The constant divisions of the basal cells leads to the olfactory epithelium being replaced every 2 4 weeks. Basal cells ... basal cells which line the olfactory epithelium and the slightly more superficial globose basal ... stem cell population supplying new cells in this system., ref Leung,C.T. Coulombe,P.A. Reed,R.R. 2007 ... more details
odorant quality. ref name Wilson1 An odorant s features are detected by the olfactorysystem ... of cells in the olfactorysystem. ref name Wilson2 Receptor neurons and mitral cells located in the olfactory ... that this poor connection is not due to limitations imposed by the human olfactorysystem, but by the way ... olfactorysystem in maternal behavior of primiparous and miltiparous ewes. Physiology ... system that may facilitate olfactory learning within the mother. ref name Levy1 L vy ... cerulus send projections to neurons in the main and accessoryolfactory bulbs. ref name Porter1 ... or accessoryolfactory systems in the development of maternal behaviors, it has been shown that the main olfactorysystem is affected when individual odour discrimination of the offspring is required ... behavior towards the newborn. ref name Levy1 The main olfactorysystem in sheep is quite significant ... and anatomical evidence show that some species may have a functioning olfactorysystem in utero. ref ... olfactory learning occurs due to the high state of plasticity and flux within the olfactorysystem ... to seek and capture food. These neurons have become a large part of the olfactorysystem throughout ... system, these is still evidence that shows these animals olfactory systems still have a strong influence ...Wikify date May 2009 Olfactory memory refers to the recollection of odour s. Studies have found various ... to interference. Explicit memory is typically the form focused on in the studies of olfactory memory ... and memories of them. Research has demonstrated that the changes to the olfactory bulb and main olfactorysystem following birth are extremely important and influential for maternal behavior. Mammalian olfactory cues play an important role in the coordination of the mother infant bond, and the following ..., and provide a basis for recognition of the mother by her offspring. Olfactory memory was developed ... suggesting that there are deficits in olfactory memory in individuals with brain degenerative diseases ... more details
system by the olfactory nerve rather, it is carried to the central nervous system by the trigeminal nerve cranial nerve V . See also Anterior olfactory nucleus Nasal administration olfactory transfer ... NormanAnatomyFig I Cranial nervddes Olfactorysystem Category Central nervous system Category Olfactorysystem Category Cranial nerves ar az Qoxu siniri de Nervus olfactorius es Nervio ...Infobox nerve Name PAGENAME Latin nervus olfactorius GraySubject 196 Image Gray771.png Caption The Olfactory ... brain, with the cranial nerves labelled. Innervates BranchFrom BranchTo MeshName Olfactory Nerve MeshNumber A08.800.800.120.640 Cranial nerves short The olfactory nerve , or cranial nerve I , is the first ... The specialized olfactory receptor neuron s of the olfactory nerve are located in the olfactory mucosa of the upper parts of the nasal cavity . The olfactory nerves do not form two trunks as do the remaining ... from the olfactory epithelium to the olfactory bulb , passing through the many openings of the Cribriform plate of the Ethmoid bone, a sieve like structure. Olfactory receptor neuron s continue to be born throughout life and extend new axons to the olfactory bulb . Olfactory ensheathing glia wrap bundles of these axons and are thought to facilitate their passage into the central nervous system. The sense of olfaction smell olfaction arises from the stimulation of olfactory or odorant Olfactory ... into electrical activity in the olfactory bulb, which then transmits the electrical activity to other parts of the olfactorysystem and the rest of the central nervous system via the olfactory tract. The olfactory nerve is the shortest of the twelve cranial nerves and only one of two cranial ... of the olfactory nerve, doctors block one of the patient s nostril s and place a pungent odor .... Lesions Lesions to the olfactory nerve can occur because of blunt trauma, such a coup contra coup damage .... However, lesions of the olfactory nerve do not lead to a reduced ability to sense pain from ... more details
Infobox Brain Name Olfactory sulcus Latin sulcus olfactorius lobi frontalis GraySubject 189 GrayPage 822 Image Gray729 olfactory sulcus.png Caption Orbital surface of left frontal lobe . Olfactory sulcus visible at upper left. Image2 Gray743.png Caption2 Coronal section through anterior cornua of lateral ventricles . Sulcus olfactorius labeled at bottom center. IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 60 MeshName MeshNumber NeuroLex Olfactory sulcus NeuroLexID birnlex 1655 DorlandsPre s 28 DorlandsSuf 12769409 The medial orbital gyrus presents a well marked antero posterior sulcus neuroanatomy sulcus , the olfactory sulcus , for the olfactory tract . Additional images gallery Image Gehirn, basal beschriftet lat.svg Basal view of a human brain gallery Gray s Telencephalon OlfactorysystemOlfactory receptors G protein coupled receptors Transmembrane receptors Category G protein coupled receptors Category Sensory receptors Category olfactorysystem Category Neurophysiology Category Integral membrane proteins Category Protein families neuroscience stub fr Sillon olfactif ja ... more details
Refimprove date December 2008 Nofootnotes date December 2008 Infobox Brain Name Olfactory tract Latin tractus olfactorius GraySubject 189 GrayPage 826 Image Gray732.png Caption Scheme of rhinencephalon . Olfactory tract visible at left. Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType hier BrainInfoNumber 265 MeshName MeshNumber NeuroLex Olfactory tract NeuroLexID birnlex 1663 DorlandsPre t 15 DorlandsSuf 12817042 The olfactory tract is a bundle of axons connecting the Olfactory bulb mitral cell mitral and tufted cells of the olfactory bulb to several target regions in the brain, including piriform cortex , amygdala , and entorhinal cortex . It is a narrow white band, triangular on coronal section , the apex being directed upward. It lies in the olfactory sulcus on the inferior surface of the frontal lobe , and divides posteriorly into two stri , a medial olfactory stria and a lateral olfactory stria . Additional images gallery Image Gray516.png The arteries of the base of the brain. Image Gray567.png Dura mater and its processes exposed by removing part of the right half of the skull, and the brain. Image Gray724.png Base of brain. Image Gray772.png Plan of olfactory neurons. Image Gray780.png The pterygopalatine ganglion and its branches. Image Human brainstem anterior view 2 description.JPG Human brainstem anterior view Image Head olfactory nerve.jpg Olfactory nerve gallery External links UMichAtlas n1a2p13 YaleCranialNerves 1 4 RocheLexicon 13048.000 1 http www.thebrain.mcgill.ca flash a a 01 a 01 cr a 01 cr ana a 01 cr ana.html Diagram at thebrain.mcgill.ca Gray s Cerebral limbic systemOlfactorysystem Category Neuroanatomy Category Olfactorysystem neuroscience stub ... more details
Infobox Brain Name Olfactory trigone Latin trigonum olfactorium GraySubject 189 GrayPage 827 Image gray732.png Caption Scheme of rhinencephalon . Olfactory trigone not labeled, but region is visible at bottom left, between anterior perforated substance and olfactory tract. Image2 Human brainstem anterior view 2 description.JPG Caption2 Human brainstem anterior view. Olfactory trigone is 4, at upper right IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 15 MeshName MeshNumber NeuroLex Olfactory trigone NeuroLexID birnlex 4042 DorlandsPre DorlandsSuf The olfactory trigone is a small triangular area in front of the anterior perforated substance . Its apex, directed forward, occupies the posterior part of the olfactory sulcus , and is brought into view by throwing back the olfactory tract . It is part of the olfactory pathway. ref name pmid8586977 cite journal author Samudralwar DL, Diprete CC, Ni BF, Ehmann WD, Markesbery WR title Elemental imbalances in the olfactory pathway in Alzheimer s disease journal J. Neurol. Sci. volume 130 issue 2 pages 139 45 year 1995 month June pmid 8586977 doi url http linkinghub.elsevier.com retrieve pii 0022510X9500018W ref References reflist External links eMedicineDictionary olfactory trigone UMichAtlas n1a8p1 Interpeduncular fossa 7 Gray s Rostral basal ganglia and associated structures Olfactorysystem Category Neuroanatomy Category Olfactorysystem neuroscience stub fa ... more details
External links http www.cancer.gov Templates db alpha.aspx?CdrID 462728 Olfactory transduction entry in the public domain NCI Dictionary of Cancer Terms NCI cancer dict OlfactorysystemOlfactory ... Category Sensory receptors Category olfactorysystem Category Neurophysiology Category Integral ...Olfactory transduction is a series of events in which odor molecules are detected by olfactory receptors and chemical signals are transformed into electrical signal to the brain where they are perceived as smells. ref name Ma M. Ma 2007 Encoding olfactory signals via multiple chemosensory systems. Crit. Rev. Biochem. Mol. Bio. 42 6 463 480. PMID 18066954 ref Once ligands odorant particles bind to specific receptors on the external surface of cilia, olfactory transduction is initiated. In mammals, olfactory receptors have been shown to signal via G protein. This is a similar type of signaling of other known G protein coupled receptors GPCR . The binding of an odorant particle on an olfactory receptor activates a particular G protein G olf , which then activates adenylate cyclase , leading to cAMP production. cAMP then binds and opens Cyclic nucleotide gated ion channel . This opening allows for an influx of both Na sup sup and Ca sup 2 sup ions into the cell, thus depolarizing it. The Ca sup 2 sup in turn activates chloride channels, causing efflux of Cl sup sup , which results in a further depolarization of the cell. ref name Kato & Touhara A.Kato & K. Touhara 2009 Mammalian olfactory receptors Pharmacology, G protein coupling and desensitization. Cel. Mol. Life Sciences. 66 23 3743 3753. PMID 19652915 ref The odorant activated cAMP cascade in the olfactory sensory neuron is subject to negative feedback regulation, like all other G protein mediated pathways. This contributes to response deactivation and adaptation to stimulus. ref name Ma Individual odorants activate subsets ... receptors. ref name Ching Ying, Menuz, & Carlson S. Chig Ying, K. Menus, & J.R. Carlson 2009 Olfactory ... more details
Infobox Anatomy Name PAGENAME Latin foramina cribrosa ossis ethmoidalis GraySubject GrayPage Image Gray149.png Caption Ethmoid bone from above. Image2 Gray193.png Caption2 Base of the skull. Upper surface. Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre f 12 DorlandsSuf 12372963 The olfactory foramina are holes in the cribriform plate which transmit the olfactory nerve s. External links http bio.winona.edu dapkus 211 Handouts foramina.htm musculoskeletal stub Cranium Foramina of skull Category Foramina of the skull zh ... more details
?datid 1&sname 1201&hname olfactory 20tubercle&hlabel OLT Rostral basal ganglia and associated structures OlfactorysystemOlfactory receptors G protein coupled receptors Transmembrane receptors Category G protein coupled receptors Category Sensory receptors Category olfactorysystem Category Neurophysiology ...Infobox Anatomy Name Olfactory tubercle Latin tuberculum olfactorium GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber The olfactory tubercle is a structure involved in Olfaction . It is present in humans, but much smaller than it is in some other animals. It is a frequent subject of research. ref name pmid18955113 cite journal author Ueda S, Sakakibara S, Kadowaki T, Naitoh T, Hirata K, Yoshimoto K title Chronic treatment with melatonin attenuates serotonergic degeneration in the striatum and olfactory tubercle of zitter mutant rats journal Neurosci. Lett. volume 448 issue 2 pages 212 6 year 2008 month December pmid 18955113 doi 10.1016 j.neulet.2008.10.059 url http linkinghub.elsevier.com retrieve pii S0304 3940 08 01461 4 ref ref name pmid18922946 cite journal author Carriero G, Uva L, Gnatkovsky V, de Curtis M title Distribution of the olfactory fiber input into the olfactory tubercle of the in vitro isolated guinea pig brain journal J. Neurophysiol. volume 101 issue 3 pages 1613 9 year 2009 month March pmid 18922946 doi 10.1152 jn.90792.2008 url http jn.physiology.org cgi pmidlookup?view long&pmid 18922946 ref ref name pmid18761028 cite journal author de Araujo NP, Fukushiro DF, Grassl C, et al. title Ethanol induced behavioral sensitization is associated with dopamine receptor changes in the mouse olfactory tubercle journal Physiol. Behav. volume 96 issue 1 pages 12 7 year 2009 month January pmid 18761028 doi 10.1016 j.physbeh.2008.07.029 url http linkinghub.elsevier.com retrieve pii S0031 9384 08 00256 4 ref ... shell, core, and olfactory tubercle journal Psychopharmacology Berl. volume 198 issue 2 pages 261 ... more details
Gray s Nose anatomy Olfactorysystem Category Olfactorysystem anatomy stub pl Gruczo y Bowmana ...Infobox Anatomy Name Olfactory glands Latin glandulae olfactoriae GraySubject 223 GrayPage 996 Image Gray857.png Caption Section of the olfactory mucous membrane. Image2 Caption2 System Precursor MeshName MeshNumber DorlandsPre g 06 DorlandsSuf 12392516 Bowman s glands aka olfactory glands , glands of Bowman are situated in the olfactory mucosa , beneath the olfactory epithelium , in the lamina propria , a connective tissue also containing fibroblasts, blood vessels, and bundles of fine axons from the olfactory neurons. ref Citation pmid 7143026 publication date 1982 year 1982 last Moran first David T. title The fine structure of the olfactory mucosa in man volume 11 pages 721 746 journal Journal of Neurocytology doi 10.1007 BF01153516 last2 Rowley Jc first2 3rd last3 Jafek first3 BW last4 Lovell first4 MA issue 5 ref The structure of the Bowman s glands consists of an acinus in the lamina propria and a secretory duct going out through the olfactory epithelium. Electron microscopy studies show that Bowman s glands contain cells with large secretory vesicles. ref Citation pmid 6052394 publication date 1967 year 1967 last Frisch first Donald title Ultrastructure of mouse olfactory mucosa. volume 121 issue 1 pages 87 120. journal The American Journal of Anatomy doi 10.1002 aja.1001210107 ref Bowman s glands might secrete proteins such as Lysozyme , amylase and IgA similarly to serous glands . The exact composition of the secretions from Bowman s glands is unclear, but there is evidence that Bowman s glands do not produce odorant binding protein . ref Citation pmid 11058764 publication date 1967 year 2000 last Tegoni first Mariella title Mammalian odorant binding proteins volume 1482 issue 1 2 pages 229 240. journal Biochimica et Biophysica Acta last2 Pelosi first2 P last3 Vincent first3 F last4 Spinelli first4 S last5 Campanacci first5 V last6 Grolli first6 S last7 Ramoni ... more details
year 2002 last Schwob first James E. title Neural Regeneration and the Peripheral OlfactorySystem volume 269 issue 1 pages 33 49 journal The Anatomical Record doi 10.1002 ar.10047 ref Cells in the olfactory ... reflist 2 anatomy stub Nose anatomy Olfactorysystem Category Olfactorysystem fa ... Ramoni first7 R last8 Cambillau first8 C ref In vertebrates, the olfactory epithelium consists of a three basic cell types bipolar neuron bipolar olfactory receptor neuron s sustentacular cell s, a type of supporting cell and basal cells, the stem cell s that continuously give rise to new olfactory ... more details
Analogous to the immune system , the diversity that exists within the olfactory receptor family allows ..., the olfactory receptor system is capable of detecting and distinguishing between a practically infinite ... Receptor Data Exploratorium HORDE MeshName Olfactory Receptor Protein OlfactorysystemOlfactory receptors ... G protein coupled receptors Category Sensory receptors Category Olfactorysystem Category Neurophysiology ...Olfactory receptors expressed in the cell membrane s of olfactory receptor neuron s are responsible for the detection of odor molecules. Activated olfactory receptors are the initial player in a signal ... D title Olfactory receptors journal Cell. Mol. Life Sci. volume 61 issue 4 pages 456 69 year 2004 ... selection and the birth of an olfactory receptor clade in teleosts journal PNAS. volume 106 issue 11 pages 4313 8 year 2009 pmid 19237578 pmc 2657432 ref The olfactory receptors form a multigene family ... author Niimura Y and Nei M title Evolution of olfactory receptor genes in the human genome journal ... In vertebrate s, the olfactory receptors are located in the cilia of the olfactory sensory ... 33 year 2007 pmid 17603536 doi 10.1038 sj.embor.7401029 pmc 1905909 ref In insect s, olfactory receptors ... JA, Zimmer RK, Hatt H title Odorant receptors and olfactory like signaling mechanisms in mammalian ... receptors , olfactory receptors display affinity for a range of odor molecules, and conversely a single odorant molecule may bind to a number of olfactory receptors with varying affinities. ref name pmid15630933 cite journal author Buck LB title Olfactory receptors and odor coding in mammals ... undergoes structural changes and it binds and activates the olfactory type G protein on the inside of the olfactory receptor neuron. The heterotrimeric G protein G protein GNAL G sub olf sub and or GNAS1 G sub s sub ref name pmid2499043 cite journal author Jones DT, Reed RR title Golf an olfactory ... the olfactory receptor neuron and beginning an action potential which carries the information ... more details
Olfactory fatigue or adaptation is the temporary, normal inability to distinguish a particular odor after a prolonged exposure to that airborne compound ref Odors chapter, Fundamentals volume of the ASHRAE Handbook , ASHRAE, Inc., Atlanta, GA, 2005 ref . For example, when entering a restaurant initially the odor of food is often perceived as being very strong, but after time the awareness of the odor normally fades to the point where the smell is not perceptible or is much weaker. After leaving the area of high odor, the sensitivity is restored with time. Anosmia is the permanent loss of the sense of smell, and is different from olfactory fatigue. It is a commonly used term in wine tasting , where one loses the ability to smell and distinguish wine bouquet after sniffing at wine s continuously for an extended period of time. The term is also used in the study of indoor air quality , for example, in the perception of odors from people, tobacco , and cleaning agents. Olfactory fatigue is an example of neural adaptation or sensory adaptation . Our bodies become desensitised to stimuli in order to prevent the overloading of our nervous system, thus allowing it to respond to new stimuli that are out of the ordinary . See also American Society of Heating, Refrigerating and Air Conditioning Engineers ASHRAE Architectural engineering Mainly N.A. Building engineering Mainly UK Building Indoor Environment Olfaction Anosmia Thermal comfort References references External links http eatdrinkplayland.blogspot.com 2006 11 to clam or not to clam question of wine.html Wine tasting Category Heating, ventilating, and air conditioning Category Building biology Category Olfaction health stub id Olfactory fatigue ... more details
Infobox Embryology Name PAGENAME Latin GraySubject 13 GrayPage 68 Image Gray41.png Caption Head end of human embryo, about the end of the fourth week. Image2 Caption2 System CarnegieStage Precursor GivesRiseTo MeshName MeshNumber DorlandsPre p 21 DorlandsSuf 12642855 By the upgrowth of the surrounding parts the olfactory areas are converted into pits, the olfactory pits , which indent the fronto nasal process and divide it into a medial and two lateral nasal processes . Additional images gallery Image Gray45.png Head end of human embryo of about thirty to thirty one days. Image Gray46.png Same embryo as shown in Fig. 45, with front wall of pharynx removed. Image Gray50.png The roof of the mouth of a human embryo, aged about two and a half months, showing the mode of formation of the palate. Image Gray947.png The head and neck of a human embryo thirty two days old, seen from the ventral surface. gallery External links EmbryologyUNC hednk 028 Gray s developmental biology stub Embryology of head and neck Category Embryology ... more details
use an olfactory map in order to home is not conclusive. Background Homing biology Homing can be defined ... ref name wil96 . On the basis of their results, the hypothesis of olfactory navigation was proposed. Olfactory map Two models for olfactory navigation have been proposed, Papi s mosaic model ref ... pigeons do extract directional information from olfactory stimuli journal Behav. Ecol. Sociobiol ... What evidence is there to support pigeons Columbia livia use an olfactory map in order to home? publisher Sussex University Press ref , although Papi 1990 , ref name papi90 argues the utilisation of olfactory ... ref Becker and van Raden 1986 . cited in Wiltschko, R. 1996 . The Function of Olfactory .... Empirical evidence The olfactory navigation hypothesis states that pigeons learn an odour map by associating ..., ref Papi F, Ioal P, Fiaschi V, Benvenuti S, Baldaccini NE 1974 Olfactory navigation of pigeons ... procedures. ref name able96 cite journal last Able first K.P. year 1996 title The Debate Over Olfactory ... results that favoured the olfactory hypothesis, with experimentals on average flying in the opposing ... J 1979 Pigeon homing deprivation of olfactory information does not affect the deflector effect ... eating birds such as pigeons. It could be argued, therefore, that pigeons are not dominated by olfactory ... a common fault of the olfactory mosaic and gradient model of olfactory navigation is that each model ... by interfering with the olfactory environment. Citation needed date February 2010 However, the variability in the effects of olfactory manipulations indicates that odours are not the sole ... playing a highly variable role, though physical limitations and inconsistent findings render the olfactory ... more details
unreferenced date January 2009 An accessory bone is a bone which does not occur frequently in the body but is still present in a significantly large number of people. Examples Examples of accessory bones include the os trigonum accessory talus which if present in the foot typically lies posterior to the talus bone talus . See also Accessory navicular bone Anatomy stub Category Skeletal system de Akzessorischer Knochen ... more details
An accessory cloud is a cloud which is dependent on a larger cloud system for its development and continuance. It is often an appendage but also can be adjacent to the parent cloud system. ref name Glossary of Meteorology cite book last Glickman first Todd S. title Glossary of Meteorology publisher American Meteorological Society month June year 2000 location Boston url http amsglossary.allenpress.com glossary ref Image Acessory cloud san diego.JPG thumb right 300px Accessory Cloud Left branching outward from a parent cloud system Right The arcus cloud s, roll cloud s and shelf cloud s, wall cloud s, and scattered cumulus under deck scud are examples of low level accessory clouds whilst the anvil cloud anvil , pileus meteorology pileus , overshooting top , and mammatus are examples of high level accessory clouds. The condensation funnel of funnel cloud s and tornado es are also accessory clouds. Precipitation It is very rare for any accessory cloud to generate its own precipitation. However, the parent cloud may generate precipitation. Precipitation from the parent cloud is often confused with the accessory cloud and observers think that the precipitation is actually falling from the accessory cloud. See also List of cloud types References references Cloud types Category Accessory clouds climate stub ... more details
Infobox Bone Name Accessory process Latin processus accessorius vertebrae lumbalis GraySubject 23 GrayPage 106 Image Processusaccessoriusvertebraelumbalis.PNG Caption A lumbar vertebra from above and behind. Accessory process labeled at center right. Image2 Caption2 System MeshName MeshNumber DorlandsPre p 34 DorlandsSuf 12667271 Of the Tubercle anatomy tubercles noticed in connection with the transverse processes of the lower lumbar vertebrae , the inferior is situated at the back part of the base of the transverse process, and is called the accessory process . External links eMedicineDictionary accessory process of lumbar vertebra Gray s Spine musculoskeletal stub Category Bones of the torso hu Processus accessorius vertebrae lumbalis ... more details
in contemporary discussions of the accessory nerve, the common practice is to dismiss the cranial part altogether, referring to the accessory nerve specifically as the spinal accessory nerve . The spinal accessory nerve provides motor innervation from the central nervous system to two muscles of the neck ...Infobox Nerve Name Accessory nerve Latin nervus accessorius GraySubject 206 GrayPage 913 Image Gray791.png Caption Plan of upper portions of glossopharyngeal , vagus , and accessory nerves. Image2 Brain ... MeshName Accessory Nerve MeshNumber A08.800.800.120.060 Cranial nerves short In anatomy , the accessory ... CN XI . Although anatomists typically refer to the accessory nerve in singular, there are in reality two accessory nerves, one on each side of the body. Traditional descriptions of the accessory nerve ... reference gray subjects subject 206 title The Accessory Nerve format work Gray s Anatomy of the Human ... of the vagus nerve and not part of the accessory nerve proper. ref name luc cite web url http www.meddean.luc.edu lumen MedED grossanatomy h n cn cn1 cn11.htm title Spinal Accessory Nerve accessdate 2007 ... can be measured during a neurological examination to assess function of the spinal accessory ... accessory nerve, which can result from a variety of causes. Injury to the spinal accessory nerve is most ... author London J, London NJ, Kay SP title Iatrogenic accessory nerve injury journal Annals of the Royal ... foramen , the spinal accessory nerve pierces the sternocleidomastoid muscle before terminating on the trapezius muscle . Like other cranial nerve s, the spinal accessory nerve begins in the central nervous system and exits the Human cranium cranium through a specialized hole or Foramina of the skull foramen . However, unlike all other cranial nerves, the spinal accessory nerve begins outside the skull rather than inside. In particular, in the majority of individuals, the fibers of the spinal accessory ... author Ryan S, Blyth P, Duggan N, Wild M, Al Ali S title Is the cranial accessory nerve really ... more details
system DEFAULTSORT Accessory Pancreas Category Digestive system Category Conditions diagnosed by stool test Category Congenital disorders of digestive system ...Infobox disease Name Accessory pancreas ICD10 ICD10 Q 45 3 q 38 ICD9 ICD9 751.7 Accessory pancreas is a rare condition in which small groups of pancreatic cells are separate from the pancreas . They may occur in the mesentery of the small intestine , the wall of the duodenum , the upper part of the jejunum , or more rarely, in the wall of the stomach , ileum , gallbladder or spleen . The condition was first described by Klob in 1859. ref Klob J. Pancreas accessorium. Zeitschrift der Kaiserl. K nigl. Gesellschaft der Aerzte zu Wien 1859 15 732. ref Accessory pancreas is a small cluster of pancreas cells detached from the pancreas and sometimes found in the wall of the stomach or intestines. Locality After researching accessory pancreas at the University of Louisville medical library, I found a list of medical cases and the doctors that operated on the patients with this condition. In 1904, Dr. A. S. Warthin found 47 cases in the literature and added 2. Up to 1921, 31 cases were added. Twelve cases were found at operation. A number of patients have been operated upon for this trouble since then. E. J. Horgan found 2 cases in 321 consecutive autopsies. Warthin Locality of Accessory Pancreas, A. S. Warthin, 1904 br Wall of stomach 14 Diverticulum of jejunum .......1 br Wall of duodenum . 12 Diverticulum of ileum . 4 br Wall of jejunum . 15 Meckel s diverticulum 1 br Wall of ileum . 1 Umbilical fistula . 1 br Wall of intestine . 1 Mesenteric fat . 1 br Diverticulum of stomach . 1 Omentum 1 Horgan Locality of Accessory Pancreas, E. J. Horgan from 1904 1921 br Stomach .. 5 Small intestine . .1 br Pylorus . 2 Diverticulum of intestine . 4 br Jejunum .. 13 Diverticulum of duodenum ... of accessory pancreas depends on the location and extent of the injured tissue. Surgery may be an option ... more details
system for the Apple Macintosh computer, a Desk Accessory DA was a piece of software , originally ... for a desk accessory program under System 7 and later is roughly a reversed version of the application ... or other system events and pop up a pre defined desk accessory. Many general purpose PalmOS launcher applications are capable of launching DAs as well. A Desk Accessory program is a Palm resource ...Desk Accessory DA is a small helper type application that can be run concurrently with any other application on the system. Early examples, such as SideKick or Macintosh Desk Accessories used special programming models to provided a small degree of computer multitasking multitasking on a system that initially ... on the system. This provided a small degree of computer multitasking multitasking on a system that initially ... were, the user could not drag and drop DAs into or out of the system. They resided in the System file ... when not installed in the system file. As a resource numbering scheme was implemented for marking ... along with the actual DA code resource they were associated with. With the advent of System 7 Macintosh System 7 , which included a standard co operative multitasking feature, the need for DAs diminished greatly, and developers were encouraged to develop small applications instead. The system continued ... small utility programs to run along with regular applications was also present in the operating system ... in a system that only supported one full application at a time. From a programming point of view ... ending with .ACC Accessory rather than .APP Application . Each .ACC file could support multiple ... usually .ACX and restart GEM. On the Amstrad PC 1512 , for example, the Snapshot accessory was shipped ... and in GEM, namely to allow more than one simultaneous program on a system that did not support multitasking ... code implementing the Desk Accessory. Global or static variables are not available, but a DA can .... The Desk Accessory launcher transfers execution to the first byte of the code 1000 resource. DAs provide ... more details
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