CRANIAL AND SPINAL NERVES

all lowercase

I

olfactory

II

optic

III

oculomotor

IV

trochlear

V

trigeminal

VI

abducens

VII

facial

VIII

vestibulocochlear

IX

glossopharyngeal

X

vagus

XI

accessory nerve

XII

hypoglossal

sensory

olfactory

sensory

optic

motor

oculomotor

motor

trochlear

mixed

trigeminal

motor

abducens

mixed

facial

sensory

vestibulocochlear

mixed

glossopharyngeal

mixed

vagus

motor

accessory nerve

motor

hypoglossal

olfactory

smell

optic

vision

oculomotor

motor to 4-6 extrinsic eye muscles and upper eyelid; parasympathetic constricts pupil, thickens lens

trochlear

motor to one extrinsic eye muscle

trigeminal

sensory to face and teeth; motor to muscles of mastication (chewing)

abducens

motor to one extrinsic eye muscle

facial

sensory: taste; motor to muscles of facial expression; parasympathetic to salivary and tear glands

vestibulocochlear

hearing and balance

glossopharyngeal

sensory: taste and touch to back of tongue; motor to pharyngeal muscles; parasympathetic to viscera of thorax and abdomen

accessory

motor to two neck and upper back muscles

hypoglossal

motor to tongue muscles

exteroreceptors

skin, mucosa, ear, eye

exteroreceptors

changes in external environment (ex. heat, cold, pressure)

exteroreceptors

initiate reflexes, sensation of many kinds (ex. heat, cold, pain, vision)

visceroreceptors

(interoreceptor) viscera

visceroreceptors

chnages in internal environment (ex. pressure)

visceroreceptors

initiate reflexes, initiate sensation of many kinds (ex. hunger, sex, nausea, pressure)

proprioreceptors

muscles, tendons, joints, semi-circular canal of inner ear

proprioreceptors

pressure changes

proprioreceptors

initiate reflexes, initiate muscle sense, or sense of position and movement of parts, also called kinesthesia