Cranial Nerves Flashcards
1
Q
What cranial nerves are purely motor?
A
Trochlear nerve
Abducens nerve
Spinal Accessory Nerve
Hypoglossal nerve
2
Q
What cranial nerves are purely sensory?
A
Olfactory nerve
Optic nerve
Vestibulocochlear nerve
3
Q
What cranial nerves have both sensory and motor nerve fibers?
A
Trigeminal nerve Facial nerve Glossopharyngeal nerve Vagus nerve Occulomotor nerve
4
Q
When do the cranial nerves form?
A
During the fixth and sixth weeks
5
Q
What nerves are included in the somatic efferent cranial nerves?
A
Trochlear, Abducens, Hypoglossal and a greater part of the occulomotor nerve
6
Q
Where are the cells of orgin of these somatic efferent nerves located?
A
Somatic efferent column in the basal plate of the brainstem
7
Q
How does the CN XII develops?
A
Fusion of the ventral roots of three or occipital nerves
