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  1. Nucleus

    TOCright wiktionarypar nucleus The nucleus is generally the core of something and may refer to Nucleus atomic structure , the very dense region at the center of an atom Nucleus cell , the control center of a cell, which contains the cell s chromosomal DNA Nucleus neuroanatomy , a cluster of neurones in the central nervous system Nucleus syllable , the central part of a syllable in linguistics Comet nucleus , the solid, central part of a comet Computer systems Nucleus CMS , a weblog system Nucleus RTOS , an operating system Nucleus, a pioneering facility for the GEC 4000 series Nucleus GEC 4000 series Other uses Nucleus band , a British jazz rock band led by Ian Carr Nucleus video game Nucleus video game , a downloadable game on the PlayStation Store Nucleus Anekdoten album Nucleus Anekdoten album , an album by Swedish prog rock band Anekdoten Nucleus Limited , an Australian medical research company, taken over by Pacific Dunlop in 1988 Nucleus Canadian band , predecessor to A Foot in Coldwater Nucleus CCTV system control software by Tecton Ltd See also Nuclear disambiguation Nucleation Nucleic acid Nucleolus disambig ar bg ca Nucli cs Nukleus cy Niwclews de Nucleus el es N cleo eo Nukleo fr Nucl us gl N cleo ko id Inti ia Nucleo disambiguation is Kjarni it Nucleo la Nucleus mk nl Nucleus ja Nucleus no Kjerne pl Nucleus ro Nucleu ru simple Nucleus sk Nukleus sr sv K rna th yi ...   more details



  1. Nucleus (linguistics)

    In linguistics , nucleus may refer to Syllable nucleus , the central part of a syllable Sentence nucleus , the syllable which receives the greatest stress in a sentence disambig ...   more details



  1. Dorsomedial nucleus

    Dorsomedial nucleus can refer to Dorsomedial hypothalamic nucleus Medial dorsal nucleus of the thalamus disambig Long comment to avoid being listed on short pages ...   more details



  1. Nucleus fastigius

    The nucleus fastigius is located in the cerebellum . It is made up of the nucleus dentatus , nucleus emboliformis , nucleus globosus , and nucleus fastigii , and is grey matter embedded in the white matter of the cerebellum. References http www.online medical dictionary.org Nucleus Fastigius.asp?q Nucleus Fastigius Online Medical Dictionary entry Category Cerebellum neuroscience stub de Nucleus fastigii ...   more details



  1. Anterior nucleus

    Anterior nucleus can refer to Anterior hypothalamic nucleus Anterior nuclei of thalamus disambig Long comment to avoid being listed on short pages ...   more details



  1. Lateral nucleus

    Lateral nucleus can refer to Lateral hypothalamus Lateral vestibular nucleus disambig Long comment to avoid being listed on short pages ...   more details



  1. Interposed nucleus

    Infobox Brain Name Interposed nucleus Latin nucleus interpositus anterior, nucleus interpositus posterior GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType BrainInfoNumber MeshName MeshNumber NeuroLex Interpositus Nucleus NeuroLexID nlx anat 20081242 Dorlands DorlandsID The interposed nucleus is a deep nucleus of the cerebellum and is composed of the globose nuclei and the emboliform nuclei . It is located in the roof dorsal aspect of the fourth ventricle, lateral to the fastigial nucleus . It receives its afferent supply from the anterior lobe of the cerebellum and sends output via the superior cerebellar peduncle to the red nucleus . The interposed nucleus is smaller than the dentate but larger than the fastigial nucleus. Function Functionally, it modulates muscle stretch reflexes of distal muscle groups. External links http www.lib.mcg.edu edu eshuphysio program section8 8ch6 s8ch6 30.htm http www.neuroanatomy.wisc.edu cere text P5 interp.htm Cerebellum Neural tracts Category Cerebellum neuroanatomy stub ...   more details



  1. Parabrachial nucleus

    Infobox Brain Name Parabrachial nucleus Latin GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType ancil BrainInfoNumber 2137625543 MeshName MeshNumber DorlandsPre DorlandsSuf The parabrachial nucleus is a region in the pons human brain that is related to the ascending reticular activating system ARAS . It can be subdivided into the lateral parabrachial nucleus LPBN and the medial parabrachial nucleus . The parabrachial nucleus connects the reticular formation to the thalamic relay nuclei as well as the intralaminar and related nuclei. Function In rodents, the parabrachial nucleus is the second relay nuclei in gustatory taste processing. Fibers from the nucleus of solitary tract connect to gustatory centers in the parabrachial nucleus, which sends projects along two pathways for taste processing. The first connects the parabrachial nucleus to the ventroposterior medial nucleus of the thalamus and the other connects the parabrachial nucleus to the central nucleus of the amygdala and lateral hypothalamus . Lesions of the parabrachial nucleus disrupt conditioned taste aversion . A lesion to this pathway can lead to decreased consciousness . External links BrainMaps parabrachial 20nucleus Pons Gustatory system neuroanatomy stub Category Neuroanatomy hu Nucleus parabrachialis ...   more details



  1. Globose nucleus

    Infobox Brain Name Globose nucleus Latin nucleus globosus GraySubject 187 GrayPage 796 Image Gray707.png Caption Sagittal section through right cerebellar hemisphere. The right olive has also been cut sagitally. Emboliform nucleus not labeled, but region is visible. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 686 MeshName MeshNumber NeuroLex Globose nucleus NeuroLexID birnlex 1159 DorlandsPre n 11 DorlandsSuf 12581303 The globose nucleus is one of the deep cerebellar nuclei. It is located medial to the emboliform nucleus and lateral to the fastigial nucleus . This nucleus contains primarily large and small multipolar neurons. The globose nucleus and emboliform nucleus are occasionally referred to collectively as the interposed nucleus . External links http www.mona.uwi.edu fpas courses physiology neurophysiology Cerebellum.htm http www.lib.mcg.edu edu eshuphysio program section8 8ch6 s8ch6 30.htm http www.neuinfo.org nif nifgwt.html?query 22Globose 20Nucleus 22 NIF Search Globose Nucleus via the Neuroscience Information Framework Gray s Cerebellum Category Cerebellum Category Neuroanatomy anatomy stub de Nucleus globosus ...   more details



  1. Geniculate nucleus

    There are two structures or rather two pairs of structures in the brain that could be called geniculate nucleus lateral geniculate nucleus Visual perception vision medial geniculate nucleus Hearing sense hearing They should not be confused with the geniculate ganglion of the facial nerve . disambig ...   more details



  1. Sublingual nucleus

    Infobox Brain Name Sublingual nucleus Latin nucleus sublingualis GraySubject 187 GrayPage 784 Image Caption Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType hier BrainInfoNumber 760 MeshName MeshNumber NeuroLex Sublingual nucleus NeuroLexID birnlex 2657 DorlandsPre n 11 DorlandsSuf 12583517 In the substance of the formatio reticularis are two small nuclei of gray matter . The one near the dorsal aspect of the hilum anatomy hilus of the inferior olivary nucleus is called the Sublingual nucleus inferior central nucleus , nucleus of Roller . External links http www.neuinfo.org nif nifgwt.html?query 22Sublingual 20Nucleus 22 NIF Search Sublingual Nucleus via the Neuroscience Information Framework Gray s Category Nervous system neuroscience stub pl J dro podj zykowe ...   more details



  1. Tuberomammillary nucleus

    Infobox Brain Name Tuberomammillary nucleus Latin boxwidth GraySubject GrayPage Image Width Caption Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType BrainInfoNumber MeshName MeshNumber NeuroLex Tuberomammillary nucleus NeuroLexID birnlex 1271 Dorlands DorlandsID The tuberomammillary nucleus neuroanatomy nucleus is a subnucleus of the Posterior anatomy posterior third of the hypothalamus . It consists of, largely, histaminergic i.e., neurones releasing histamine and is involved with the control of arousal , sleep and circadian rhythm . Axons of the tuberomammillary nucleus neuroanatomy nucleus project primarily to the cerebral cortex, thalamus, basal ganglia, basal forebrain, and hypothalamus. The projections to the cerebral cortex directly increase cortical activation and arousal, and projections to acetylcholinergic neurons of the basal forebrain and dorsal pons do so indirectly, by increasing the release of acetylcholine in the cerebral cortex. References see, for example Kandel, Schwartz & Jessel, Principles of Neural Science, 4th Ed., p977. Category Cerebrum Category Neuroanatomy Neuroscience stub ...   more details



  1. Monilea nucleus

    Italic title Taxobox name Monilea nucleus image image caption regnum Animal ia phylum Mollusca classis Gastropoda unranked familia clade Vetigastropoda superfamilia Trochoidea superfamily Trochoidea familia Trochidae subfamilia Umboniinae genus Monilea subgenus species M. nucleus binomial Monilea nucleus binomial authority Philippi, 1849 synonyms ref synonyms Monilea nucleus is a species of sea snail , a marine gastropod mollusk in the family biology family Trochidae , the top snails. ref name WoRMS WRMS species 215795 Monilea nucleus Philippi, 1849 1 May 2010 ref Description Empty section date April 2010 Distribution Empty section date April 2010 References reflist External links Use dmy dates date January 2011 DEFAULTSORT Monilea Nucleus Category Trochidae Trochidae stub ...   more details



  1. Nucleus accumbens

    Infobox Brain Name Nucleus accumbens Latin nucleus accumbens septi GraySubject GrayPage Image Circuit du syst me de recompense.jpg Caption Nucleus accumbens visible in red. Image2 Gray727 Brodman.png Caption2 anatomical terms of location Medial surface, person facing to the left. Nucleus accumbens is very ... 259 MeshName Nucleus Accumbens MeshNumber A08.186.211.730.885.105.683 NeuroLex Nucleus accumbens NeuroLexID birnlex 727 DorlandsPre n 11 DorlandsSuf 12580142 The nucleus accumbens NAcc , also known as the accumbens nucleus or as the nucleus accumbens septi Latin for Nucleus neuroanatomy nucleus leaning against the septum , is a collection of neuron s within the striatum . It is thought ... M, Richardson R, Schnitzler HU title Temporary inactivation of the nucleus accumbens disrupts acquisition ... News Today ref Each half of the brain has one nucleus accumbens. It is located where the head of the caudate nucleus caudate and the anterior portion of the putamen meet just lateral to the septum pellucidum . The nucleus accumbens and the olfactory tubercle collectively form the ventral striatum ... Nucleus Accumbens Nucleus Accumbens Bot generated title ref The nucleus accumbens can be divided into two structures the nucleus accumbens core and the nucleus accumbens shell . These structures have different morphology and function. Cell types The principal neuronal cell type found in the nucleus ... are also the main projection or output neurons of the nucleus accumbens. While 95 of the neurons in the nucleus accumbens are medium spiny GABA ergic projection neurons, other neuronal types ... neurons of the nucleus accumbens send axon projections to the ventral analog of the globus pallidus , known as the ventral pallidum VP . The VP, in turn, projects to the medial dorsal nucleus of the dorsal ... the nucleus accumbens include connections with the substantia nigra and the pontine reticular formation . Input Major inputs to the nucleus accumbens include prefrontal association cortices, basolateral ...   more details



  1. Hypoglossal nucleus

    Infobox Brain Name Hypoglossal nucleus Latin nucleus nervi hypoglossi GraySubject 187 GrayPage 779 Image Gray694.png Caption Section of the medulla oblongata at about the middle of the olive . Hypoglossal nucleus visible top left. Image2 Gray696.png Caption2 The cranial nerve nuclei schematically represented dorsal view. Motor nuclei in red sensory in blue. XII labeled at bottom left. IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 754 MeshName MeshNumber NeuroLex Hypoglossal nucleus NeuroLexID birnlex 2644 DorlandsPre n 11 DorlandsSuf 12581974 The hypoglossal nucleus is a cranial nerve nucleus , and it extends the length of the medulla oblongata medulla , and being a motor nucleus, is close to the midline. In the open medulla, it is visible as what is known as the hypoglossal trigone , a raised area medial to the vagal trigone protruding slightly into the fourth ventricle . In the closed medulla, the gracile nucleus gracile and cuneate nucleus cuneate nuclei lie posteriorly, which means the nucleus is not as close to the back of the medulla as in the open medulla. It is, however, still close to the midline. See also Hypoglossal nerve Additional images gallery Image Gray695.png Transverse section of medulla oblongata below the middle of the olive. Image Gray697.png Nuclei of origin of cranial motor nerves schematically represented lateral view. Image Medulla oblongata posterior very low mag.jpg Micrograph showing the hypoglossal nuclei in relation to their surrounding structures. Image Medulla oblongata posterior cn xii high mag.jpg Micrograph showing the hypoglossal nucleus. LFB stain H&E LFB stain . gallery External links BrainstemWisconsin 07CNXII UMichAtlas n2a6p2 BrainMaps Hypoglossal 20nucleus Hypoglossal nucleus http www.neuinfo.org nif nifgwt.html?query 22Hypoglossal 20Nucleus 22 NIF Search Hypoglossal Nucleus via the Neuroscience Information Framework Rhombencephalon Cranial nerves Category Neuroanatomy neuroscience stub pl J dro nerwu podj zykowego ...   more details



  1. Emboliform nucleus

    Infobox Brain Name Emboliform nucleus Latin nucleus emboliformis GraySubject 187 GrayPage 796 Image Gray707.png Caption Sagittal section through right cerebellar hemisphere. The right olive has also been cut sagitally. Emboliform nucleus not labeled, but region is visible. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 685 MeshName MeshNumber NeuroLex Emboliform Nucleus NeuroLexID birnlex 1135 DorlandsPre n 11 DorlandsSuf 12581167 The emboliform nucleus lies immediately to the medial side of the nucleus dentatus , and partly covering its hilus. It is one among the four pairs of cerebellar nuclei, which are from lateral to medial the dentate, interposed emboliform and globose , and fastigial nuclei. These nuclei can be seen using the Weigert method staining. External links http www.mona.uwi.edu fpas courses physiology neurophysiology Cerebellum.htm http www.lib.mcg.edu edu eshuphysio program section8 8ch6 s8ch6 30.htm http www.neuinfo.org nif nifgwt.html?query 22Emboliform 20Nucleus 22 NIF Search Emboliform Nucleus via the Neuroscience Information Framework Gray s Cerebellum neuroanatomy stub Category Neuroanatomy de Nucleus emboliformis ...   more details



  1. Conus nucleus

    Italic title Taxobox name Conus nucleus image image caption regnum Animal ia phylum Mollusca classis Gastropoda unranked familia clade Caenogastropoda br clade Hypsogastropoda br clade Neogastropoda superfamilia Conoidea familia Conidae subfamilia Coninae genus Conus species C. nucleus binomial Conus nucleus binomial authority Reeve, 1848 synonyms ref synonyms Conus nucleus is a species of sea snail , a marine gastropod mollusk in the family biology family Conidae , the Conus cone snails and their allies. ref name WoRMS WRMS species 215555 Conus nucleus Reeve, 1848 27 March 2010 ref Like all species within the genus Conus , these snails are predatory and venomous . They are capable of stinging humans, therefore live ones should be handled carefully or not at all. Description Empty section date March 2010 Distribution Empty section date March 2010 References reflist External links http biology.burke.washington.edu conus catalogue index.php The Conus Biodiversity website Use dmy dates date January 2011 DEFAULTSORT Conus Nucleus Category Conidae conus stub pt Conus nucleus vi Conus nucleus ...   more details



  1. Preoptic nucleus

    Preoptic nucleus can refer to Ventrolateral preoptic nucleus Anterodorsal preoptic nucleus Preoptic area disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ...   more details



  1. Nucleus reuniens

    The nucleus reuniens , in the brain , links the medial prefrontal cortex with the midline thalamus , and regulates the amount of neural traffic with changes in attentiveness Clarify date July 2010 . References cite Cite web url http www.ncbi.nlm.nih.gov pubmed 17292803 title Nucleus reuniens of the midline thalamus link between the medial prefrontal cortex and the hippocampus. work fau.edu year 2007 accessdate 30 March 2007 cite Use dmy dates date September 2010 DEFAULTSORT Nucleus Reuniens Category Anatomy Neuroanatomy stub ...   more details



  1. Red nucleus

    unref date March 2009 confuse Red blood cell Nucleus Infobox Brain Name PAGENAME Latin nucleus ruber GraySubject 188 GrayPage 802 Image cn3nucleus.png Caption Transverse section through the midbrain showing the location of the red nuclei. The superior colliculi are at the top of image and the cerebral peduncle s at the bottom of image both in section. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 496 MeshName Red Nucleus MeshNumber A08.186.211.132.659.822.642 NeuroLex Red nucleus NeuroLexID birnlex 1478 DorlandsPre n 11 DorlandsSuf 12583247 The red nucleus is a structure in the Anatomical terms of location Directional terms rostral midbrain involved in motor coordination . It comprises a caudal Magnocellular red nucleus magnocellular and a rostral Parvocellular red nucleus parvocellular part. Function In animals without a significant corticospinal tract , gait is mainly controlled by the red nucleus. In humans, the red nucleus may control the muscles of the shoulder and upper arm, via projections of its magnocellular part. However, in humans, where ..., here the red nucleus is less important in motor functions than in many other mammals. However, the crawling of babies is controlled by the red nucleus, as is arm swinging in normal walking. In humans the red nucleus has sparse control over hands , as the rubrospinal tract is more involved in large ... nucleus rather it relies on the corticospinal tract . The majority of red nucleus axons do ... . Input and output The red nucleus receives many inputs from the Contralateral contra lateral cerebellum interposed nucleus and lateral cerebellar nucleus and an input from the Ipsilateral ipsi ... Tegmentum tegmental field towards Inferior olivary nucleus inferior olive . See also List of regions ... at Stanford University BrainMaps Red 20nucleus Red nucleus http www.prometheus.uni tuebingen.de sec ... neuroanatomy stub de Nucleus ruber es N cleo rojo fr Noyau rouge pl J dro czerwienne ...   more details



  1. Cuneate nucleus

    Infobox Brain Name Cuneate nucleus Latin nucleus cuneatus GraySubject 187 GrayPage 774 Image Gray691.png Caption Dissection of brain stem . Dorsal view. Label for nucleus cuneatus is on left, third from the bottom. Image2 Gray694.png Caption2 Section of the medulla oblongata at about the middle of the olive. IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 764 MeshName MeshNumber NeuroLex Cuneate nucleus NeuroLexID birnlex 2640 DorlandsPre n 11 DorlandsSuf 12580900 One of the dorsal column nuclei , the cuneate nucleus is a wedge shaped nucleus neuroanatomy nucleus in the closed part of the medulla oblongata . It contains cells that give rise to the cuneate tubercle , visible on the posterior aspect of the medulla. It lies laterally to the gracile nucleus and medial to the spinal trigeminal nucleus in the medulla. Function The cuneate nucleus is part of dorsal column medial lemniscus system , carrying touch fine touch and proprioception proprioceptive information from the upper body above T6, excepting the face and ear the information from the face and ear is carried by the primary sensory trigeminal nucleus to the contralateral thalamus via the medial lemniscus. Inputs It receives direct input from the mechanoreceptors of the upper body as well as indirect input from them via the spinal cord. It is also subject to descending control from the central nervous system. Pathology It may be affected by Tocopherol vitamin E deficiency exhibiting neuroaxonal swelling. Citation needed date April 2010 See also Fasciculus cuneatus Additional images gallery Image Gray680.png Decussation of pyramids. Image Gray683.png Dissection of brain stem. Lateral view. Image Gray684.png ... Cuneate 20nucleus Cuneate nucleus http www.neuinfo.org nif nifgwt.html?query 22Corpus 20Cuneate 20nucleus 22 NIF Search Cuneate Nucleus via the Neuroscience Information Framework Rhombencephalon Neural tracts Category Brainstem Category Sensory system de Nucleus cuneatus ...   more details



  1. Fastigial nucleus

    Infobox Brain Name PAGENAME Latin nucleus fastigii GraySubject 187 GrayPage 796 Image Gray707.png Caption Sagittal section through right cerebellar hemisphere. The right olive has also been cut sagitally . Fastigial nucleus visible but not labeled. Image2 Caption2 IsPartOf cerebellum Components Artery Vein Acronym BrainInfoType hier BrainInfoNumber 687 MeshName MeshNumber NeuroLex Corpus callosum NeuroLexID birnlex 1146 DorlandsPre n 11 DorlandsSuf 12581208 The fastigial nucleus or nucleus fastigii refers specifically to the concentration of gray matter nearest to the middle line at the anterior end of the superior vermis , and immediately over the roof of the fourth ventricle , from which it is separated by a thin layer of white matter. ref cite web url http www.neuroanatomy.wisc.edu cere text P5 S C50.htm title The Global Cerebellum 97 author John K. Harting, Ph.D. publisher University of Wisconsin Medical School year 1997 accessdate 2007 06 28 ref It is smaller than the nucleus dentatus , but somewhat larger than the nucleus emboliformis and nucleus globosus , the other two independent centers of gray matter in the cerebellum . The fastigial nucleus is the smallest in size, with the dentate being the largest and the interposed being intermediate in size. Relations and function The fastigial nucleus receives its afferent input from the vermis . Most of its efferent connections travel via the inferior cerebellar peduncle to the vestibular nuclei , which is located at the junction of the pons and the medulla oblongata . The fastigial nucleus deals with antigravity muscle groups ... city Philadelphia page 9 ref The fastigial nucleus contains excitatory axons which project beyond the cerebellum .... The likely neurotransmitters of the excitatory fastigial nucleus axons are glutamate and aspartate ... 20Nucleus 22 NIF Search Fastigial Nucleus via the Neuroscience Information Framework Gray s neuroscience stub Cerebellum Neural tracts Category Nervous system Category Cerebellum de Nucleus ...   more details



  1. Gracile nucleus

    Infobox Brain Name PAGENAME Latin nucleus gracilis GraySubject 187 GrayPage 774 Image Gray688.png Caption Section of the medulla oblongata at the level of the decussation of the pyramids . Gracile nucleus is 8. Image2 Gray691.png Caption2 Dissection of brain stem . Dorsal view. nucleus gracilis is labeled on left, second from the bottom. IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 763 MeshName MeshNumber NeuroLex Gracile nucleus NeuroLexID birnlex 2643 DorlandsPre n 11 DorlandsSuf 12581325 Located in the medulla oblongata , the gracile nucleus is one of the dorsal column nuclei that participate in the sensation of touch fine touch and proprioception of the lower body legs and trunk . It contains second order neuron s of the dorsal column medial lemniscus system , which receive inputs from sensory neuron s of the dorsal root ganglia and send axon s that synapse in the thalamus . The neuron s contained within the nucleus neuroanatomy nucleus form a visible bump called the gracile tubercle on the posterior side of the closed medulla at the floor of the fourth ventricle . The gracile nucleus and Fasciculus gracilis fasciculus carry epicritic , kinesthetic , and conscious proprioceptive information from the lower part of the body below the level of T6 in the spinal cord . The counterpart to the gracile nucleus and fasciculus is the cuneate nucleus and Fasciculus cuneatus fasciculus , which carries the same type of information, but from the upper body above T6, excepting the face and ear the information from the face and ear is carried by the principal sensory nucleus of trigeminal nerve . Additional images gallery Image Gray680.png Decussation of pyramids ... 20Nucleus 22 NIF Search Gracile Nucleus via the Neuroscience Information Framework Rhombencephalon Neural tracts Category Central nervous system Category Sensory system DEFAULTSORT Gracile Nucleus de Nucleus gracilis ...   more details



  1. Syllable nucleus

    Mergeto Syllable Syllable structure date January 2010 Unreferenced date August 2007 class wikitable align right style margin .5em 0 .5em .5em Examples Word Nucleus c a t IPA k t IPA b e d IPA b d IPA o de IPA o d IPA o b ee t IPA bit IPA i b i te IPA ba t IPA a r ai n IPA re n IPA e b i tt e n br IPA b t. n or IPA b t.n IPA br IPA or IPA n In phonetics and phonology , the nucleus sometimes called peak is the central part of the syllable , most commonly a vowel . In addition to a nucleus, a syllable may begin with an syllable onset onset and end with a syllable coda coda , but in most languages the only part of a syllable that is mandatory is the nucleus. The nucleus and coda form the syllable rime rime of the syllable. Diphthong s and triphthong s can also serve as the nucleus. Syllables with short vowel s as nuclei are sometimes referred to as light syllables while syllables with long vowel s, diphthongs, or triphthongs as nuclei are referred to as heavy syllables see Syllable weight for more discussion. Sonorant consonants such as liquid consonant liquids such as IPA r and IPA l and nasal consonant nasals such as IPA m and IPA n can serve as the nucleus if there is no vowel . The nucleus of the last syllable in the final example at right is an example of a sonorant nucleus. Apical vowels Four vowels in Chinese, , , , and , are considered consonant s in western In a small number of languages, the onset may also be mandatory, so that vowel initial syllables are not found. There are also a few languages such as Nuxalk language Nuxalk and some dialects of Berber languages Berber , which have some obstruent only words. It is difficult to divide such words into syllables using conventions from other languages it may be that the concept of syllable doesn t apply, or that syllabic nuclei are optional in these languages. Category Phonology Category Phonotactics br Krao ell ar silabenn de Silbenkern it Nucleo sillabico nl Nucleus taalkunde nn Stavingskj ...   more details



  1. Staphylaea nucleus

    Italic title Taxobox name Staphylaea nucleus image image caption regnum Animal ia phylum Mollusca classis Gastropoda unranked familia clade Caenogastropoda br clade Hypsogastropoda br clade Littorinimorpha superfamilia Cypraeoidea familia Cypraeidae subfamilia genus Staphylaea subgenus species S. nucleus binomial Staphylaea nucleus binomial authority Linnaeus synonyms ref ref name WoRMS synonyms Cypraea nucleus Linnaeus, 1758 basionym Staphylaea nucleus is a species of sea snail , a cowry , a marine gastropod mollusk in the family biology family Cypraeidae , the cowries. ref name WoRMS WRMS species 216891 Staphylaea nucleus Linnaeus WoRMS 2009 . Staphylaea nucleus Linnaeus . Accessed through the World Register of Marine Species at nowiki http www.marinespecies.org aphia.php?p taxdetails&id 216891 nowiki on 19 October 2010 ref There is one subspecies Staphylaea nucleus madagascariensis Gmelin, 1791 synonym Cypraea madagascariensis Gmelin, 1791 common name the wrinkled cowrie . This subspecies is distributed in the Indian Ocean along Kenya , Madagascar and Tanzania . Description Empty section date May 2010 Distribution This species is distributed in the Red Sea and in the Indian Ocean along Aldabra , Chagos , Kenya , Madagascar , the Mascarene Basin, Mauritius , R union , the Seychelles , Somalia and Tanzania References reflist External links Use dmy dates date January 2011 DEFAULTSORT Staphylaea Nucleus Category Cypraeidae Cypraeidae stub vi Staphylaea nucleus zh ...   more details




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