Somatic Afferent (SA) Pathways of the Oculomotor, Trochlear, and Abducent Nerves Flashcards Preview

Spinal Anatomy I - Exam 3 > Somatic Afferent (SA) Pathways of the Oculomotor, Trochlear, and Abducent Nerves > Flashcards

Flashcards in Somatic Afferent (SA) Pathways of the Oculomotor, Trochlear, and Abducent Nerves Deck (9):
1

What do somatic afferent (SA) pathways monitor?

- pain
- temperature
- light touch
- proprioception

2

Does the apparent origin of cranial nerves III, IV, and VI contain SA fibers?

no

3

What part of the III, IV, or VI cranial nerve contains SA fibers?

only the distal part of the nerve

4

Peripheral sensory processes conveyed in the III, IV, or VI cranial nerve will communicate with which cranial nerve branch?

ophthalmic division of trigeminal

5

Peripheral sensory processes conveyed in the III, IV, or VI cranial nerve travel to pseudounipolar sensory neuron cell bodies located in which ganglion?

Gasserian ganglion, semilunar ganglion, or trigeminal ganglion

6

Central sensory processes from the Gasserian ganglion are conveyed to the pons in what structure?

the sensory root of the trigeminal nerve

7

Typically, primary afferent neurons of the III, IV, or VI cranial nerve located in the semilunar ganglion will synapse in what nucleus?

spinal trigeminal nucleus

8

Recently, peripheral sensory processes conveyed in the III, IV, or VI cranial nerve have been shown to originate from primary afferent neurons in which location?

mesencephalic nucleus of the trigeminal nerve

9

In the SA pathway of cranial nerve III, IV, or VI, neurons within the mesencephalic nucleus may synapse at what locations?

- oculomotor nuclear complex for III
- trochlear motor nucleus for IV
- abducent/abducens motor nucleus for VI
- spinal trigeminal nucleus

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