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From Wikipedia, the free encyclopedia
A cranial nerve nucleus is a collection of neurons (gray matter) in the brain stem that is associated with one or more of the cranial nerves. Axons carrying information to and from the cranial nerves form a synapse first at these nuclei. Lesions occurring at these nuclei can lead to effects resembling those seen by the severing of nerve(s) they are associated with. All the nuclei except that of the trochlear nerve (CN IV) supply nerves of the same side of the body.
Cranial nerve nucleus | |
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Details | |
Identifiers | |
Latin | nucleus nervi cranialis |
NeuroLex ID | nlx_28532 |
TA98 | A14.1.00.004 |
TA2 | 5857 |
FMA | 54501 |
Anatomical terms of neuroanatomy |
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (October 2022) |
In general, motor nuclei are closer to the front (ventral), and sensory nuclei and neurons are closer to the back (dorsal). This arrangement mirrors the arrangement of tracts in the spinal cord.
This list documents nuclei by the part of the brain they are found in:
Olfactory nerve | Olfactory bulb |
Optic nerve | Lateral geniculate nucleus |
Oculomotor nerve | Oculomotor nucleus Edinger-Westphal nucleus |
Trochlear nerve | Trochlear nucleus |
Trigeminal nerve | Trigeminal nerve nuclei: Mesencephalic nucleus Principal sensory nucleus Spinal trigeminal nucleus Trigeminal motor nucleus |
Abducens nerve | Abducens nucleus |
Facial nerve | Facial motor nucleus Superior salivatory nucleus Solitary nucleus |
Vestibulocochlear nerve | Vestibular nuclei w. subnuclei Cochlear nucleus w. subnuclei |
Glossopharyngeal nerve | Solitary nucleus Spinal nucleus of the trigeminal nerve Lateral nucleus of vagal trigone. Nucleus ambiguus Inferior salivatory nucleus |
Vagus nerve | Dorsal nucleus of vagus nerve Nucleus ambiguus Solitary nucleus Spinal trigeminal nucleus |
Accessory nerve | Spinal accessory nucleus Nucleus ambiguus |
Hypoglossal nerve | Hypoglossal nucleus |
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