Principal sensory nucleus of trigeminal nerve

Principal sensory nucleus of trigeminal nerve
Brain: Principal sensory nucleus of trigeminal nerve
Gray696.svg
The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei are at "V".)
Latin nucleus principalis nervi trigemini
Gray's subject #187 787
NeuroNames hier-552
MeSH Trigeminal+nuclei

The principal sensory nucleus (or chief sensory nucleus of V) is a group of second order neurons which have cell bodies in the dorsal Pons.

It receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via first order neurons of CN V.

  • Most of the sensory information crosses the midline and travels to the contralateral ventral posteriomedial (VPM) of the thalamus via the Ventral trigeminothalamic tract.
  • However, information of the oral cavity travels to the ipsilateral Ventral Posteriomedial (VPM) of the thalamus via the Dorsal trigeminothalamic tract.

External links

v · d · eHuman brain, rhombencephalon, metencephalon: pons (TA A14.1.05.101–604, GA 9.785)
Dorsal/
(tegmentum)
Surface
White: Sensory/ascending
White: Motor/descending

afferent: GSA: Principal V/Spinal V · VIII-c (Dorsal, Anterior)/VIII-v (Superior)

efferent: SVE: Motor V  · VII · GSE: VI · GVE: VII: Superior salivary nucleus
Other grey
Ventral/
(base)
White: Motor/descending
Surface
Basilar sulcus
Other grey: Raphe/
reticular

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)
v · d · eNerves of head and neck: the cranial nerves and nuclei (TA A14.2.01, GA 9.855)
olfactory (AON->I)
optic (LGN->II)
oculomotor
(ON, EWN->III)
trochlear (TN->IV)
no significant branches
trigeminal
(PSN, TSN, MN, TMN->V)
abducens (AN->VI)
no significant branches
facial (FMN, SN, SSN->VII)
near origin
vestibulocochlear
(VN, CN->VIII)
glossopharyngeal
(NA, ISN, SN->IX)
ganglia (superior, inferior)
vagus
(NA, DNVN, SN->X)
ganglia (superior, inferior)
accessory (NA, SAN->XI)
hypoglossal (HN->XII)

M: PNS

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • principal sensory nucleus of trigeminal nerve — nucleus principalis nervi trigemini [TA] the nucleus of termination of afferent fibers of the trigeminal nerve, carrying impulses for sensations of touch and pressure, located in the dorsolateral part of the middle of the pons, just lateral to… …   Medical dictionary

  • Principal sensory nucleus — Infobox Brain Name = PAGENAME Latin = nucleus principalis nervi trigemini GraySubject = 187 GrayPage = 787 Caption = The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei… …   Wikipedia

  • sensory nucleus of trigeminal nerve principal — n. principalis nervi trigemini …   Medical dictionary

  • Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… …   Medical dictionary

  • Gracile nucleus — Brain: Gracile nucleus Section of the medulla oblongata at the level of the decussation of the Pyramids. Gracile nucleus is #8 …   Wikipedia

  • Trigeminal motor nucleus — Brain: Trigeminal motor nucleus The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei are at V .) Latin nucleus motorius nervi trigemini Gray s …   Wikipedia

  • nucleus motorius nervi trigemini — [TA] motor nucleus of trigeminal nerve: the nucleus of origin of the motor fibers of the trigeminal nerve, located in the dorsolateral part of the pons, just medial to the principal sensory nucleus and the entering sensory root …   Medical dictionary

  • Cranial nerve — Nerve: Cranial nerves Inferior view of the brain and brain stem showing cranial nerves. An unlabelled version is here Latin nervus cranialis (plural: nervi cranial …   Wikipedia

  • Cranial nerve nucleus — Brain: Cranial nerve nucleus The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (The olfactory and optic centers are not represented.) Latin nucleus nervi cranialis Gray s …   Wikipedia

  • Lateral vestibular nucleus — Brain: Lateral vestibular nucleus Terminal nuclei of the vestibular nerve, with their upper connections. (Schematic.) 1. Cochlear nerve, with its two nuclei. 2. Accessory nucleus. 3. Tuberculum acusticum. 4. Vestibular nerve. 5. Internal nucleus …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”