Cranial nerves

mnemonic to remember first letter of the nerves

“Oh, Once One Takes The Anatomy Final, a Very Good Vacation Sounds Heavenly!”

Oh

olfactory

once

optic

one

oculomotor

takes

trochlear

the

trigeminal

anatomy

abducens

final

facial

Very

vestibulocochlear

good

glossopharyngeal

vacation

vagus

sound

spinal accessory

heavenly

hypoglossal

mnemonic for function of 12 nerves

“Some Say Marry Money, But My Brother Says Big Brains Matter More”

some

sensory

say

sensory

marry

motor

money

motor

but

both

my

motor

brother

both

says

sensory

big

both

brains

both

matter

motor

more

motor

function of olfactory nerves

convey olfactory signals to brain

path of olfactory signs

1. olfactory epithelium in superior nasal cavities

2. olfactory nerves

3. olfactory bulbs in cranial cavity

4. olfactory tract

5. cerebrum

   1. olfactory cortex of the temporal lobe

path of optic signals

1. retina

2. optic nerve

3. cross at optic chiasm

4. continue as optic tract

function of vestibulocochlear nerves

carry sensory info from vestibule and cochlea of inner ear

sensory nerves to brain

olfactory(1), optic(2), vesitbulocochlear(vlll)

motor nerves tha tinnervate the muscles that move eye and extraocular muscles

oculomotor (III), trochlear (IV), and abducens nerves (VI)

how to remeber eye movemnt nerves

OATs are good for the EYES

O: oculomotor

A: abducens nerves

T:trochlear

Trigeminal nerve

(V) supplies motor intervention to chewing muscles and carries sensory from the face, oral cavities and nasal cavities ie the face (greatest sensory nerve of the head)

facial nerve

(Vll) motor neurons to facial expression muscles and sensory neurons from taste buds

glossopharyngeal

(lX) motor neurons to muscles of pharynx for swallowing and carries sensory info from taste buds

vagus nerve

(X) provides sensory and motor innervation to many of body’s internal organs from neck to abdomen

Nerves to neck and tongue

spinal accessory nerve(IX) and hypoglossal nerve(Xll)

spinal accessory nerve

(XI) motor stimulation to trapezius and sternocleidomastoid muscle of the neck

hypoglossal nerve

(XII) moto nerve of tongue