A&P Exam 5 (final exam)

olfactory nerve number

I or 1

olfactory function

smell

-sensory

-can be stopped due to aging or blunt force trauma

optic nerve number

II or 2

optic nerve function

vision

-sensory

oculomotor nerve number

III or 3

oculomotor function

eye movements

-motor

-lifting the upper eyelid and pupillary constriction/dilation

trochlear nerve number

IV or 4

trochlear nerve function

eye movements (using superior oblique muscles)

-motor

trigemineal nerve number

V or 5

trigemineal nerve function

sensations of the face and move muscles of mastication (chewing)

-both

abducens nerve number

VI or 6

abducens nerve function

eye movement

-motor

facial nerve number

VII or 6

facial nerve function

facial expressions and 2/3 of taste in anterior tongue

-both

vestibulochochlear number

VIII or 8

vestibulochochlear nerve function

hearing and balance (conductive hearing, vibration through ossicles)

-sensory

glossopharyngeal nerve number

IX or 9

glossopharyngeal nerve function

muscles in oral cavity, 1/3 of posterior taste in the tongue

-both

vagus nerve number

X or 10

vagus nerve function

homeostatic control of organs in thoracic and upper abdominal cavities

-both

spinal accessory number

XI or 11

spinal accessory function

muscles in the neck and cervical spinal muscles

-motor

hypoglossal nerve number

XII or 12

hypoglossal nerve function

control muscles in lower throat and tongue

-motor