CRANIAL NERVES

Question 1

name all the cranial nerves and their Roman numerals and their modalities

Answer 1

I Olfactory - sensory
II optic - sensory
III occulomotor - motor
IV trochlea - motor
V trigeminal - both
VI abducens - motor
VII facial - both
VIII vestibulocochlea - sensory
IX glossopharyngeal - both
X Vagus - both
XI spinal accessory - motor
XII - hypoglossal - motor

Question 2

which CNs exit anteriorly, posteriorly and laterally

Answer 2

posteriorly –> IV torchlea
laterally –> VIII vestibulocochlea
anteriorly –> the rest

Question 3

motor and sensory component of the cranial nerves

Answer 3

motor component is associated with motor nuclei, a group of efferent fibers sending axons to the CN

Sensory component is associated with the sensory nuclei, a group of afferent fibers that synapse with the sensory neurone of the CN