Trigeminal nerve nuclei

The sensory trigeminal nerve nuclei are the largest of the cranial nerve nuclei, and extend through the whole of the midbrain, pons and medulla, and into the high cervical spinal cord.

Trigeminal nerve nuclei
The cranial nerve nuclei schematically represented; dorsal view. Motor nuclei in red; sensory in blue. (Trigeminal nerve nuclei are at "V".)
Details
Identifiers
Latinnuclei trigemini
MeSHD014278
NeuroNames2021
NeuroLex IDnifext_11
FMA71248
Anatomical terms of neuroanatomy

The nucleus is divided into three parts, from rostral to caudal (top to bottom in humans):

The spinal trigeminal nucleus is further subdivided into three parts, from rostral to caudal:
  • Pars oralis (from the Pons to the Hypoglossal nucleus)
  • Pars interpolaris (from the Hypoglossal nucleus to the obex)
  • Pars caudalis (from the obex to C2)

There is also a distinct trigeminal motor nucleus that is medial to the principal sensory nucleus.

See also

Additional images
  • Dissection of brain-stem. Lateral view.
    Dissection of brain-stem. Lateral view.
  • Deep dissection of brain-stem. Lateral view.
    Deep dissection of brain-stem. Lateral view.
  • Nuclei of origin of cranial motor nerves schematically represented; lateral view.
    Nuclei of origin of cranial motor nerves schematically represented; lateral view.
  • Primary terminal nuclei of the afferent (sensory) cranial nerves schematically represented; lateral view.
    Primary terminal nuclei of the afferent (sensory) cranial nerves schematically represented; lateral view.
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