- Fusional vergence
Orphan date March 2011 unreferenced date June 2008 Fusional vergence is the movement of both human eye eye s that enables the fusion of monocular images producing binocular vision . It is especially important when a person has heterophoria . Premotor cells for fusional vergence are located in the mesencephalon near the oculomotor nucleus. References reflist Category Eye eye stub ... more details
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- Mesopontine
Mesopontine refers to an area of tissue that lies at the junction of mesencephalon and the pons . The dorsal area of this is the Pontine tegmentum mesopontine tegmentum . ref cite web title mesopontine url http www.bookrags.com tandf mesopontine tf ref The region contains cholinergic neurons. See also Tegmentum References reflist Category Neuroanatomy ... more details
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- Midbrain
citations missing date June 2010 Infobox Brain Name Mesencephalon Latin mesencephalon GraySubject 188 GrayPage 800 Image Human brain inferior view description.JPG Caption Inferior view mesencephalon 2 , above 3 Image2 Human brainstem thalamus posterior view description.JPG Caption2 Human brainstem mesencephalon B IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 445 MeshName Mesencephalon MeshNumber A08.186.211.132.659 The midbrain or mesencephalon from the Greek mesos middle, and enkephalos brain ref Mosby s Medical, Nursing and Allied Health Dictionary, Fourth Edition, Mosby Year Book 1994, p. 981 ref is a portion of the central nervous system associated with vision, hearing, motor control, sleep wake, arousal alertness , and temperature regulation. ref Breedlove, Watson, & Rosenzweig. Biological Psychology, 6th Edition, 2010, pp. 45 46 ref Anatomically, it comprises the tectum ... peduncle s, as well as several nuclei and fasciculi. Caudally Is this a good word to use here? the mesencephalon ... known as the mesencephalon, of the neural tube . Unlike the other two vesicles, the prosencephalon and rhombencephalon , the mesencephalon remains undivided for the remainder of neural development. It does ... ref Functional Role The mesencephalon is considered part of the brainstem . Its substantia nigra is closely associated with motor system pathways of the basal ganglia . The human mesencephalon is archipallium ... 8 weeks 4.JPG thumb Mesencephalon of human embryo A transverse cross section at the level of the superior .... Organization Image Gray719.png thumb right mesencephalon tectum inferior colliculi superior ... list of regions in the human brain References reflist Nervous system Mesencephalon Category Midbrain az Orta beyin be ca Mesenc fal cs St edn mozek da Mesencephalon de Mittelhirn el ... mk nl Mesencephalon ja no Mesencephalon pl r dm zgowie pt Mesenc falo ru simple Mesencephalon sk Stredn mozog fi Keskiaivot sv Mitthj rnan th uk ... more details
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- Vestibulo-oculomotor fibers
Infobox Brain Name Vestibulo oculomotor fibers Latin GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType ancil BrainInfoNumber 409 MeshName MeshNumber DorlandsPre DorlandsSuf The vestibulo oculomotor fibers are the portion of the medial longitudinal fasciculus which ascends to the oculomotor nucleus from the vestibular nuclei . See also Vestibulo ocular reflex Pons Mesencephalon Visual pathways Auditory and vestibular pathways Neuroanatomy stub Category Central nervous system pathways Category Brainstem ... more details
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- Parvocellular red nucleus
The parvocellular red nucleus RNp is located in the rostral midbrain and is involved in motor coordination . Together with the magnocellular red nucleus , it makes up the red nucleus . ref name pmid16516425 cite journal author Yamaguchi K, Goto N title Development of the human parvocellular red nucleus. A morphological study journal Developmental Neuroscience volume 30 issue 5 pages 325 330 year 2008 pmid 18594131 ref References reflist Mesencephalon Neural tracts Category Neuroanatomy neuroanatomy stub ... more details
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- Sulcus limitans (neural tube)
dablink This article is about the structure in the developing nervous system . For the structure of the fourth ventricle Sulcus limitans . A shallow, longitudinal groove separating the developing gray matter into a basal plate neural tube basal and alar plate alar plates along the length of the neural tube . he sulcus limitans extends the length of the spinal cord and through the mesencephalon . ref http isc.temple.edu neuroanatomy lab embryo new spcd 1 ref References references External links Development of nervous system developmental biology stub Category Embryology of nervous system ... more details
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- Midbrain tectum
20of 20midbrain fixed 20photo.jpg Photo RocheLexicon 13048.000 3 Mesencephalon Neural tracts Category ... more details
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- Cerebral aqueduct
aqueduct File Slide7qq.JPG Cerebral aqueduct gallery Mesencephalon Category Cerebrum Category ... more details
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- Rostral interstitial nucleus of medial longitudinal fasciculus
Infobox Brain Name Rostral interstitial nucleus of medial longitudinal fasciculus Latin nucleus interstitialis GraySubject GrayPage Image Gray710.png Caption Coronal section through mid brain. Nucleus is not labeled, but MLF is b , in red. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 507 MeshName MeshNumber NeuroLex Rostral interstitial nucleus of medial longitudinal fasciculus NeuroLexID birnlex 1481 DorlandsPre n 11 DorlandsSuf 12581542 The rostral interstitial nucleus of medial longitudinal fasciculus riMLF is a portion of the medial longitudinal fasciculus which controls vertical gaze . They project to the vestibular nuclei . External links http www.uni tuebingen.de uni knl Vilis originof.htm http anatomy.umc.edu faculty lynch.html http isc.temple.edu neuroanatomy lab atlas papc Mesencephalon Visual system Category Neuroanatomy Neuroanatomy stub ... more details
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- Decussation of superior cerebellar peduncles
Infobox Brain Name Decussation of superior cerebellar peduncles Latin decussatio pedunculorum cerebellarium superiorum GraySubject GrayPage Image Gray711.png Caption Transverse section of mid brain at level of inferior colliculi. Decussation not labeled, but region is visible. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 518 MeshName MeshNumber NeuroLex Decussation of superior cerebellar peduncle NeuroLexID birnlex 1089 DorlandsPre DorlandsSuf The decussation of superior cerebellar peduncle is the portion of the superior cerebellar peduncle which crosses into the midbrain . External links http isc.temple.edu neuroanatomy lab atlas micn http www.neuroanatomy.wisc.edu Bs97 TEXT P18 sum.htm http www.neuinfo.org nif nifgwt.html?query 22Decussation 20of 20superior 20cerebellar 20peduncle 22 NIF Search Decussation of superior cerebellar peduncle via the Neuroscience Information Framework Mesencephalon Cerebellum Category Neuroanatomy anatomy stub ... more details
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- Rubro-olivary tract
Infobox Brain Name PAGENAME Latin GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType ancil BrainInfoNumber 502 MeshName MeshNumber DorlandsPre DorlandsSuf The rubro olivary tract is a tract which connects the inferior olive and the parvocellular red nucleus . It is hypothesized that it uses both the corticospinal tract and rubrospinal tract . ref name pmid1703677 cite journal author Kennedy PR title Corticospinal, rubrospinal and rubro olivary projections a unifying hypothesis journal Trends Neurosci. volume 13 issue 12 pages 474 479 year 1990 month December pmid 1703677 doi 10.1016 0166 2236 90 90079 P url ref References reflist External links http www.ucsf.edu nreview 02.1 Anatomy Brain&SC Cerebellum.html neuroanatomy stub Medulla Mesencephalon Category Neuroanatomy ... more details
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- Magnocellular red nucleus
The magnocellular red nucleus RNm is located in the rostral midbrain and is involved in motor coordination . Together with the parvocellular red nucleus , it makes up the red nucleus . ref name pmid16516425 cite journal author Yamaguchi K, Goto N title Development of the human magnocellular red nucleus a morphological study journal Brain Dev. volume 28 issue 7 pages 431 5 year 2006 month August pmid 16516425 doi 10.1016 j.braindev.2006.01.001 url http linkinghub.elsevier.com retrieve pii S0387 7604 06 00017 9 ref References reflist External links BrainMaps Red 20nucleus Red nucleus Mesencephalon Neural tracts Category Midbrain neuroanatomy stub ... more details
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- Pretectal area
Infobox Brain Name PAGENAME Latin area pretectalis GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 450 MeshName MeshNumber DorlandsPre a 59 DorlandsSuf 12151405 The pretectum , also known as the pretectal area , is a region of neuron s found between the thalamus and midbrain . It receives binocular vision binocular Sensory system sensory input from Ganglion cell retinal ganglion cells of the human eye eye s, and is the region responsible for maintaining the pupillary light reflex . ref name Purves cite book author Purves, Dale, George J. Augustine, David Fitzpatrick, William C. Hall, Anthony Samuel LaMantia, James O. McNamara, and Leonard E. White title Neuroscience. 4th ed. publisher Sinauer Associates pages 290 2 year 2008 isbn 978 0 87893 697 7 ref Outputs The pretectum, after receiving binocular input, outputs to the Edinger Westphal nucleus in the midbrain, to the Cilio spinal nucleus Budge , which is located in the VIII cervical and I, II thoracic vertebral segments, and to the nucleus of the posterior commissure . The Edinger Westphal nucleus projects onto the ciliary ganglion , whose output controls pupillary constriction miosis . The Edinger Westphal nucleus controls the Pupillary sphincter muscle used in situations of bright light to reduce the exposure of the retina and the Ciliary muscle used for Accommodation eye eye focusing and accommodation . The Cilio Spinal Nucleus projects onto the superior cervical ganglion, and controls the Pupillary dilator muscle used in situations of near dark, to increase the exposure of the retina References reflist 1 See also Oculomotor nerve Mesencephalon List of regions in the human brain External links BrainMaps Pretectum http www.indiana.edu pietsch neuro20labels500.jpg http isc.temple.edu neuroanatomy lab atlas papc Mesencephalon Visual pathways Category Midbrain Category Visual system neuroscience stub de Area pretectalis es Pretectum ... more details
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- Brachium of inferior colliculus
Infobox Brain Name Brachium of inferior colliculus Latin brachium colliculi inferioris GraySubject 188 GrayPage 806 Image Human brainstem thalamus posterior view description.JPG Caption 1. Taenia choroidea and lateral Lamina affixa , Stria terminalis BR 2. Thalamus , Pulvinar thalami BR 3. Third ventricle BR 4. Stalk of pineal gland BR 5. Habenula BR 6. Stria medullaris BR 7. Superior colliculus BR 8. Brachium of superior colliculus BR 9. Inferior colliculus BR 10. Brachium of inferior colliculus BR 11. Medial geniculate nucleus BR 12. Sulcus medianus BR 13. Superior cerebellar peduncles BR 14. Inferior cerebellar peduncle BR 15. Middle cerebellar peduncles BR 16. Tuberculum anterius thalami BR 17. Obex , Area postrema Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType BrainInfoNumber MeshName MeshNumber NeuroLex Brachium of inferior colliculus NeuroLexID birnlex 929 DorlandsPre b 20 DorlandsSuf 12194990 The Brachium of inferior colliculus or inferior brachium carries auditory afferent fibers from the inferior colliculus of the mesencephalon to the medial geniculate nucleus . ref Neuroanatomy 5th edition, Nolte. Mosby 2002. ref References references External links http www.neuinfo.org nif nifgwt.html?query 22brachium 20of 20Inferior 20Colliculus 22 NIF Search Brachium of inferior colliculus via the Neuroscience Information Framework Category Brain Mesencephalon Neuroanatomy stub DEFAULTSORT Brachium Of Inferior Colliculus ... more details
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- Midbrain tegmentum
Infobox Brain Name Midbrain tegmentum Latin Tegmentum Mesencephali GraySubject 188 GrayPage 802 Image Gray712.png Caption Transverse section of mid brain at level of superior colliculi . Tegmentum visible center right. Image2 cn3nucleus.png Caption2 Section through superior colliculus showing path of oculomotor nerve . Tegmentum not labeled, but surrounding structures more clearly defined. IsPartOf Midbrain Components Artery Vein BrainInfoType hier BrainInfoNumber 482 MeshName Tegmentum Mesencephali MeshNumber A08.186.211.132.659.822 NeuroLex Midbrain Tegmentum NeuroLexID birnlex 1200 The midbrain tegmentum is the part of the midbrain extending from the substantia nigra to the cerebral aqueduct in a horizontal section of the midbrain. It forms the floor of the midbrain that surrounds the cerebral aqueduct. See also Tegmentum Pontine tegmentum External links http 137.222.110.150 calnet UMN image tectum 20& 20tegmentum 20of 20midbrain fixed 20photo.jpg Photo RocheLexicon 13048.000 3 Mesencephalon Category Midbrain neuroscience stub ... more details
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- List of anatomical isthmi
In anatomy, isthmus refers to a constriction between organs. This is a list of anatomical isthmi From de Isthmus Isthmus the mesencephalon midbrain rhombencephalon hindbrain boundary. Isthmus faucium Throat Rachenenge Isthmus glandularis or Thyroid isthmus schmale Gewebsbr cke der Schilddr se einiger S ugetiere Isthmus prostatae Prostate schmale Gewebsbr cke der Prostata beim Pferd Isthmus tubae auditivae Eustachian tube Engstelle der Ohrtrompete Isthmus of uterine tube Isthmus tubae uterinae Fallopian tube Engstelle des Eileiters Uterine isthmus Isthmus urethrae Urethra Engstelle der Harnr hre Isthmus of the Oviduct Isthmus des Legedarms Isthmus of the Rhombencephalon Isthmus of the Corpus Callosum Isthmus of cingulate gyrus Isthmus of the Cingulate Gyrus Cavo tricuspid isthmus of the right atrium of the heart, a body of fibrous tissue in the lower atrium between the inferior vena cava, and the tricuspid valve. Category Anatomy Isthmus Category Biology lists Anatomical isthmus de Isthmus Anatomie ... more details
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- Posterior perforated substance
Infobox Brain Name PAGENAME Latin substantia perforata posterior, substantia perforata interpeduncularis GraySubject 188 GrayPage 800 Image Gray717.png Caption Coronal section of brain immediately in front of pons . Post. perf. substance labeled at lower left. Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType ancil BrainInfoNumber 726 MeshName MeshNumber DorlandsPre s 27 DorlandsSuf 12766915 The depressed area between the crura is termed the interpeduncular fossa , and consists of a layer of gray matter, the posterior perforated substance , which is pierced by small apertures for the transmission of blood vessels its lower part lies on the ventral aspect of the medial portions of the tegmenta , and contains a nucleus named the interpeduncular ganglion its upper part assists in forming the floor of the third ventricle . See also Anterior perforated substance Additional images gallery Image Human brainstem anterior view 2 description.JPG Human brainstem anterior view gallery External links UMichAtlas n2a2p1 RocheLexicon 13048.000 1 Gray s neuroscience stub Mesencephalon Category Nervous system ... more details
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- Interpeduncular fossa
Infobox Brain Name PAGENAME Latin fossa interpeduncularis GraySubject 189 GrayPage 816 Image Gray724.png Caption Base of brain . Image2 Cn3nucleus.png Caption2 Section through superior colliculus showing path of oculomotor nerve. Interpeduncular fossa not labeled, but visible at bottom center. IsPartOf Components Artery Vein Acronym BrainInfoType hier BrainInfoNumber 480 MeshName MeshNumber DorlandsPre f 14 DorlandsSuf 12376197 The interpeduncular fossa is a somewhat lozenge shaped area of the base of the brain, limited in front by the optic chiasma , behind by the antero superior surface of the pons , antero laterally by the converging optic tracts, and postero laterally by the diverging cerebral peduncles. The structures contained in it, from behind forward, are the posterior perforated substance , corpora mamillaria , tuber cinereum , infundibulum , and hypophysis . See also cerebral peduncles Additional images gallery Image Human brainstem anterior view 2 description.JPG Human brainstem anterior view File Slide7dd.JPG Interpeduncular fossa gallery External links http www.med.umich.edu lrc coursepages M1 anatomy html atlas n1a8p1.html Diagram at UMich.edu Gray s neuroscience stub Mesencephalon Category Cerebrum ... more details
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- Prethalamus
Mergeto subthalamus date December 2009 Unreferenced date December 2009 The prethalamus formerly described as ventral thalamus or subthalamus is part of the diencephalon and therefore part of the brain . Developmental biologists prefer the term prethalamus, as it can be genetically defined Puelles and Rubenstein, 2003 , whereas human anatomists often use the expression subthalamus. The prethalamus is part of the mid diencephalic territory MDT containing also the zona limitans intrathalamica ZLI , and the thalamus . Caudally, the prethalamus is separated from the thalamus by the ZLI acting as lineage restriction boundary. The pro neural gene Dlx gene Dlx2 serves a typical marker of the prethalamus. Typical nucleus neuroanatomy nuclei of the prethalamus are the zona incerta , thalamic reticular nucleus , and the fields of Forel . The prethalamus is patterned by Sonic hedgehog signalling from the ZLI. Anatomically, it develops efferent nerve efferent output connections to the striatum caudate nucleus and putamen in the telencephalon , to the thalamus medial and lateral nuclear groups in the diencephalon, and to the red nucleus and substantia nigra in the mesencephalon . It receives afferent nerve afferent input connections from the substantia nigra and striatum. Diencephalon Category Diencephalon de Pr thalamus ... more details
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- Cerebral crus
Infobox Brain Name PAGENAME Latin crus cerebri GraySubject 188 GrayPage 800 Image Cn3nucleus.png Caption Section through midbrain showing label for cerebral crus at lower left. Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 530 MeshName MeshNumber NeuroLex Cerebral crus NeuroLexID birnlex 1218 DorlandsPre c 64 DorlandsSuf 12268053 The cerebral crus is the anterior portion of the cerebral peduncle which contains the motor tracts, the plural of which is cerebral crura . In some older texts, it is used as a synonym for the entire cerebral peduncle, not just the anterior portion of it. Additional images gallery Image Human brain frontal coronal section description 2.JPG Human brain frontal coronal section gallery External links UMichAtlas n2a2p1 UMichAtlas n1a5p3 http www.neuinfo.org nif nifgwt.html?query 22Cerebral 20Crus 22 NIF Search Cerebral Crus via the Neuroscience Information Framework Gray s neuroanatomy stub Mesencephalon Category Brainstem ... more details
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- Spinotectal tract
contradiction Hmm date January 2011 Infobox Anatomy Name Spinotectal tract Latin t. spinotectalis GraySubject 185 GrayPage 762 Image Gray669.png Caption Diagram showing a few of the connections of afferent sensory fibers of the posterior root with the efferent fibers from the ventral column and with the various long ascending fasciculi. Spinotectal fasciculus labeled at bottom right. Image2 Gray672.png Caption2 Diagram of the principal fasciculi of the spinal cord. Spinotectal fasciculus labeled at bottom left. System Precursor MeshName MeshNumber DorlandsPre t 15 DorlandsSuf 12817240 The spinotectal tract spinotectal fasciculus arises in the anterolateral column and terminate in the Inferior colliculus inferior and Superior colliculus superior colliculi. It is situated ventral to the lateral spinothalamic fasciculus , but its fibers are more or less intermingled with it. It is also known as the spino quadrigeminal system of Mott . In the brain stem the fibers run lateral from the inferior olive , ventro lateral from the superior olive, then ventro medial from the spinal tract of the trigeminal the fibers come to lie in the medial portion of the lateral lemniscus . See also Tectospinal tract External links http sky.bsd.uchicago.edu lcy ref synap touch.html Diagram and overview at uchicago.edu neuroscience stub Gray s Spinal cord Mesencephalon Neural tracts Category Nervous system ... more details
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- Cerebrospinal fibers
Infobox Brain Name PAGENAME Latin Fibrae cerebrospinales GraySubject 188 GrayPage 802 Image Gray710.png Caption Coronal section through mid brain . BR 1. Corpora quadrigemina . BR 2. Cerebral aqueduct . BR 3. Central gray stratum . BR 4. Interpeduncular space . BR 5. Sulcus lateralis . BR 6. Substantia nigra . BR 7. Red nucleus of tegmentum . BR 8. Oculomotor nerve , with 8 , its nucleus of origin. a. Lemniscus anatomy Lemniscus in blue with a the medial lemniscus and a the lateral lemniscus . b. Medial longitudinal fasciculus . c. Raph . d. Temporopontine fibers . e. Portion of medial lemniscus , which runs to the lentiform nucleus and Insular cortex insula . f. Cerebrospinal fibers. g. Frontopontine fibers . Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType BrainInfoNumber MeshName MeshNumber DorlandsPre DorlandsSuf The cerebrospinal fibers , derived from the cells of the motor area of the cerebral cortex , occupy the middle three fifths of the base they are continued partly to the nuclei of the motor cranial nerves , but mainly into the pyramids of the medulla oblongata . Gray s Mesencephalon Category Central nervous system Category Article Feedback 5 neuroscience stub ... more details
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- Frontopontine fibers
Infobox Brain Name PAGENAME Latin fibrae frontopontinae GraySubject 188 GrayPage 802 Image Gray710.png Caption Coronal section through mid brain . BR 1. Corpora quadrigemina . BR 2. Cerebral aqueduct . BR 3. Central gray stratum . BR 4. Interpeduncular space . BR 5. Sulcus lateralis . BR 6. Substantia nigra . BR 7. Red nucleus of tegmentum . BR 8. Oculomotor nerve , with 8 , its nucleus of origin. a. Lemniscus anatomy Lemniscus in blue with a the medial lemniscus and a the lateral lemniscus . b. Medial longitudinal fasciculus . c. Raph . d. Temporopontine fibers . e. Portion of medial lemniscus , which runs to the lentiform nucleus and Insular cortex insula . f. Cerebrospinal fibers . g. Frontopontine fibers. Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType ancil BrainInfoNumber 381 MeshName MeshNumber DorlandsPre f 05 DorlandsSuf 12361970 The frontopontine fibers are situated in the medial fifth of the base of the cerebral peduncles they arise from the cells of the frontal lobe and end in the nuclei of the pons . The frontopontine tract tractus frontopontinus refers to the combination of the fibers. See also Paramedian pontine reticular formation External links http www.neuropat.dote.hu anastru test2ha.htm Diagram at neuropat.dote.hu Gray s neuroscience stub Mesencephalon Medulla and pons of rhombencephalon Category Nervous system DEFAULTSORT Frontopontine Fibers ... more details
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- Temporopontine fibers
Infobox Brain Name Temporopontine fibers Latin fibrae temporopontinae GraySubject 188 GrayPage 802 Image Gray710.png Caption Coronal section through mid brain . BR 1. Corpora quadrigemina . BR 2. Cerebral aqueduct . BR 3. Central gray stratum . BR 4. Interpeduncular space . BR 5. Sulcus lateralis . BR 6. Substantia nigra . BR 7. Red nucleus of tegmentum . BR 8. Oculomotor nerve , with 8 , its nucleus of origin. a. Lemniscus anatomy Lemniscus in blue with a the medial lemniscus and a the lateral lemniscus . b. Medial longitudinal fasciculus . c. Raph . d. Temporopontine fibers. e. Portion of medial lemniscus , which runs to the lentiform nucleus and Insular cortex insula . f. Cerebrospinal fibers . g. Frontopontine fibers . Image2 Caption2 IsPartOf Components Artery Vein Acronym BrainInfoType ancil BrainInfoNumber 384 MeshName MeshNumber DorlandsPre f 05 DorlandsSuf 12362121 In the human nervous system the temporopontine fibers , a component of the corticopontine tract , are lateral to the cerebrospinal fibers they originate in the temporal lobe and end in the nuclei pontis . Gray s Mesencephalon Medulla and pons of rhombencephalon Category Nervous system neuroscience stub ... more details
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- Anterior trigeminothalamic tract
Infobox Brain Name Ventral trigeminothalamic tract Latin tractus trigeminothalamicus anterior GraySubject GrayPage Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType hier BrainInfoNumber 609 MeshName MeshNumber NeuroLex Ventral trigeminothalamic tract NeuroLexID birnlex 1001 DorlandsPre DorlandsSuf The Anterior trigeminothalamic tract or ventral trigeminothalamic tract serves as pain , temperature , and crude touch pathway from the face, head and neck. It receives input from trigeminal nerve , facial nerve , glossopharyngeal nerve and vagus nerve . After entering the pons the central projections of the first order neurons descend to the medulla, forming the spinal trigeminal tract and synapse in the spinal trigeminal complex. Axons of the second order neurons cross the midline and terminate in the ventral posterior medial thalamus as opposed to the ventral posterior lateral thalamus as in the dorsal column medial leminscus and spinothalamic tract pathway to mediate conscious sensation of pain and temperature from the face, head and neck. The third order neuron in the thalamus then connects to the sensory cortex of the postcentral gyrus . The affective motivational information is mediated by connections to reticular formation, midbrain, and the midline nuclei of the thalamus . The midline nuclei third order neurons then synapse to the cingulate and insular cortex. http www2.uic.edu stud orgs prof medclass2010 Neuroanat week 3.doc . External links http isc.temple.edu neuroanatomy lab atlas hpv http isc.temple.edu neuroanatomy lab atlas ocn Pons Mesencephalon Diencephalon Neural tracts Category Nervous system neuroscience stub ... more details
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