Cranial Nerves Flashcards
(I). Olfactory nerve:
function:
location:
olfactory bulbs
purely sensory, carry afferent impulses for sense of smell
(II). Optic nerve:
function:
location:
Optic chiasma,
retina of the eye
Purely sensory, carry afferent impulses for vision
(III). Oculomotor nerve:
function:
location:
ventral midbrain,
superior orbital fissure to eye
Eye mover, 6 extrinsic muscle that move the eyeball
(IV). Trochlear nerve:
function:
location:
dorsal midbrain,
ventrally midbrain pulley,
extrinsic eye muscle
(V). Trigeminal nerve:
function:
location:
extend from pons to face
form three divisions
transmit afferent impulses from touch, temperature, and pain receptors
(VI). Abducens nerve:
function:
location:
inferior pons and enter superior orbital fissure of the eye
supply somatic motor fibers to lateral rectus
(VII). Facial nerve:
function:
location:
pons, temporal bone, internal acoustic meatus
chief motor nerves of face, facial expression, crying, saliva, smell, taste
(VIII). Vestibulocochlear nerve:
function:
location:
inner ear of temporal bone, pons &
medulla border transmit afferent impulses for sense of equilibrium, for sense of hearing
(IX). Glossopharyngeal nerve:
function:
location:
medulla
Motor: elevates the pharynx in swallowing, saliva
Sensory: conduct taste and general sensory
(X). Vagus nerve:
function:
location:
the only cranial nerve to extend beyond head and neck region,
medulla involved in regulating heart rate, breathing, digestive system activity
(XI). Accessory nerve:
function:
location:
From rootlets that emerge from the spinal cord, cervical moves head and neck
(XII). Hypoglossal nerve:
function:
location:
roots from medulla
Mainly serve the tongue, movement, swallowing and speech
Mnemonic
- Oh
- Oh
- Oh
- To
- Touch
- And
- Feel
- A (V*)
- Girl’s
- Vagina
- Ahhhh
- Heaven
Nerve Type Mnemonic
- Some
- Say
- Marry
- Money
- But
- My
- Brother
- Says
- Big
- Brains
- Matter
- More
