Principal sensory nucleus of trigeminal nerve information
Principal sensory nucleus of trigeminal nerve
The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei are at "V".)
Details
Identifiers
Latin
nucleus principalis nervi trigemini
NeuroNames
560
TA98
A14.1.05.406
TA2
5932
FMA
54533
Anatomical terms of neuroanatomy
[edit on Wikidata]
The principal sensory nucleus of trigeminal nerve (or chief sensory nucleus of V, main trigeminal sensory nucleus) is a group of second-order neurons which have cell bodies in the caudal 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 posteromedial nucleus (VPM) of the thalamus via the anterior trigeminothalamic tract.
However, information of the oral cavity travels to the ipsilateral VPM of the thalamus via the dorsal trigeminothalamic tract.
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Anatomy of the pons
Dorsal/ (tegmentum)
Surface
Cerebellopontine angle
Superior medullary velum
Sulcus limitans
Medial eminence
Facial colliculus
White: Sensory
Trapezoid body
Trigeminal lemniscus
Dorsal trigeminal tract
Ventral trigeminal tract
Medial lemniscus
Lateral lemniscus
Central tegmental tract
Medial longitudinal fasciculus
Vestibulo-oculomotor fibers
White: Motor
Inferior cerebellar peduncle
Vestibulocerebellar tract
Medial longitudinal fasciculus
Vestibulospinal tract
Medial vestibulospinal tract
Lateral vestibulospinal tract
Grey: Cranial nuclei
afferent:
GSA
Trigeminal
Principal
Spinal
Cochlear nucleus
Dorsal
Anterior
Vestibular nuclei
Superior
efferent:
SVE: Trigeminal motor nucleus
Facial motor nucleus
GSE: Abducens nucleus
GVE: Superior salivary nucleus
Inferior salivary nucleus
Grey: Other nuclei
Pedunculopontine nucleus
Apneustic center
Pneumotaxic center
Parabrachial nuclei
Subparabrachial nucleus
Medial parabrachial nucleus
Lateral parabrachial nucleus
Superior olivary nucleus
Locus coeruleus
Ventral/ (base)
Grey
Pontine nuclei
White: Motor/descending
Corticospinal tract
Corticobulbar tract
Corticopontine fibers
MCP
Pontocerebellar fibers
Surface
Basilar sulcus
Other grey: Raphe/ reticular
Reticular formation
Caudal
Oral
Tegmental
Paramedian
Raphe nuclei
Median
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The cranial nerves
Terminal (CN 0)
Nuclei
septal nuclei
Course
no significant branches
Olfactory (CN I)
Nuclei
anterior olfactory nucleus
Course
olfactory bulb
olfactory tract
Optic (CN II)
Nuclei
lateral geniculate nucleus
Course
optic chiasm
optic tract
Oculomotor (CN III)
Nuclei
oculomotor nucleus
Edinger–Westphal nucleus
Branches
superior
parasympathetic root of ciliary ganglion
inferior
Trochlear (CN IV)
Nucleus
Branches
no significant branches
Trigeminal (CN V)
Nuclei
PSN
spinal trigeminal nucleus
MN
TMN
Course
trigeminal ganglion
Branches
ophthalmic
maxillary
mandibular
Abducens (CN VI)
Nucleus
Branches
no significant branches
Facial (CN VII)
Near origin
Intermediate nerve
Geniculate
Inside facial canal
Greater petrosal
pterygopalatine ganglion
Nerve to the stapedius
Chorda tympani
lingual nerve
submandibular ganglion
At stylomastoid foramen
Posterior auricular
Suprahyoid
digastric
stylohyoid
Parotid plexus
temporal
zygomatic
buccal
mandibular
cervical
Nuclei
Facial motor nucleus
Solitary nucleus
Superior salivary nucleus
Vestibulocochlear (CN VIII)
Nuclei
vestibular nuclei
cochlear nuclei
Cochlear nerve
striae medullares
lateral lemniscus
Vestibular
Scarpa's ganglion
Glossopharyngeal (CN IX)
Before jugular fossa
Ganglia
superior
inferior
After jugular fossa
Tympanic
tympanic plexus
lesser petrosal
otic ganglion
Stylopharyngeal branch
Pharyngeal branches
Tonsillar branches
Lingual branches
Carotid sinus
Nuclei
Nucleus ambiguus
Inferior salivatory nucleus
Solitary nucleus
Vagus (CN X)
Before jugular fossa
Ganglia
superior
inferior
After jugular fossa
Meningeal branch
Auricular branch
Neck
Pharyngeal branch
pharyngeal plexus
Superior laryngeal
external
internal
Recurrent laryngeal
Superior cervical cardiac
Thorax
Inferior cardiac
Pulmonary
Vagal trunks
anterior
posterior
Abdomen
Celiac
Renal
Hepatic
Anterior gastric
Posterior gastric
Nuclei
Nucleus ambiguus
Dorsal nucleus of vagus nerve
Solitary nucleus
Accessory (CN XI)
Nuclei
nucleus ambiguus
spinal accessory nucleus
Cranial
Spinal
Hypoglossal (CN XII)
Nucleus
Branches
lingual
Authority control databases
Terminologia Anatomica
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