Cranial Nerves - Associated Nuclei Flashcards
CN III
Motor
- Oculomotor nuc.
- Accessory oculomotor nuc. or Edinger-Westphal nuc. (parasympathetic)
CN IV
Motor
- Trochlear nuc.
The only cranial nerve which decussates inside the brainstem (mesencephalon) and then exits dorsally.
CN V
Mixed
- Motor nuc. of trigeminal n.
- Mesencephalic nuc. of trigeminal n. (proprioceptive)
- Principal sensory (pontine) nuc. of trigeminal n. (epicritic)
- Spinal nuc. of trigeminal n. (receives protopathic fibers from CN V, VII, IX and X)
CN VI
Motor
- Abducens nuc.
CN VII
Mixed
- Facial nuc.
- Sup salivatory nuc.
- Solitary tract nuc. (taste)
- Contains protopathic fibers which terminate on the spinal nuc. of trigeminal n.
CN VIII
Sensory
- Ant./ventral and post./dorsal cochlear nuclei
- Sup., inf., med. and lat. vestibular nuclei
CN IX
Mixed
- Ambiguus nuc.
- Inf. salivatory nuc.
- Lat. nuc. of ala cinerea (contains or receives fibers from baroreceptors and chemoreceptors?) - GVA or GVS
- Solitary t. nuc. (taste)
- Contains protopathic fibers which terminate on the spinal nuc. of trigeminal n.
CN X
Mixed
- Ambiguus nuc.
- Medial nuc. of ala cinerea or dorsal vagal nuc. - GVE
- Lat. nuc. of ala cinerea - GVA
- Solitary nuc. (taste)
- Contains protopathic fibers which terminate on the spinal nuc. of trigeminal n.
CN XI
Motor
- Spinal accessory nuc. C1-6 - GSE
- Ambiguus nuc. - SVE
CN XII
Motor
- Hypoglossal nuc.
Fibers of which cranial nerves terminate on the solitary tract nucleus?
- CN VII, IX and X
Fibers of which cranial nerves terminate on the lat. ala cinerea nucleus?
- CN IX and X
Fibers of which cranial nerves terminate on the medial ala cinerea nucleus?
- CN X
Which nuclei are located in the mesencephalon (midbrain)?
- Oculomotor nuc.
- Accessory oculomotor nuc. or Edinger-Westphal nuc.
- Trochlear nuc.
- Mesencephalic nuc. of CN V
Which nuclei are located in the metencephalon (pons)?
- Mesencephalic nuc. of CN V (caudal part)
- Principal sensory (pontine) nuc. of CN V
- Spinal nuc. of CN V (rostral part)
- Motor nuc. of CN V
- Vestibular nuclei (rostral part which contains sup., med. and lat. nuclei) and cochlear nuclei
- Solitary tract nuc. (rostral part, which receives fibers from CN VII)
- Abducens nuc.
- Facial nuc.
- Sup. salivatory nuc.
Which nuclei are located in the myelencephalon (medulla oblongata)?
- Vestibular nuc. (caudal part which contains inf. nucleus)
- Spinal nuc. of CN V
- Solitary tract nuc. (caudal part, which receives fibers from CN IX and X)
- Lat. nuc. of ala cinerea
- Hypoglossal nuc.
- Ambiguus nuc.
- Dorsal nuc. of vagus n. or medial nuc. of ala cierea
- Inf. salivatory nuc.
Which nucleus is located in the cervical part of the spine?
- Spinal accessory nuc. C1-6
Which nuclei are classified as GSE?
- Oculomotor nuc.
- Trochlear nuc.
- Abducent nuc.
- Hypoglossal nuc.
- Spinal accessory nuc. C1-6
Which nuclei are classified as SVE?
- Motor nuc. of CN V
- Facial nuc.
- Ambiguus nuc.
Which nuclei are classified as GVE?
- Accessory oculomotor nuc. or Edinger-Westphal nuc.
- Sup. salivatory nuc.
- Inf. salivatory nuc.
- Medial nuc. of ala cinerea or dorsal vagal nuc.
Which nuclei are classified as GVA?
- Lat. nuc. of ala cinerea
Which nuclei are classified as SVA?
- Solitary tract nuc.
Which nuclei are classified as GSA?
- Mesencephalic nuc. of trigeminal n. (proprioceptive)
- Principal sensory (pontine) nuc. of trigeminal n. (epicritic)
- Spinal nuc. of trigeminal n. (receives protopathic fibers from CN V, VII, IX and X)
Which nuclei are classified as SSA?
- Chochlear nuclei
- Vestibular nuclei
