Cranial Nerves

Question 1

Sensory/motor/both Acrostic sentence

Answer 1

Some say marry money, but my brother says big brains matter most.

Question 2

V

Answer 2

trigeminal nerve- Both sensory and motor
important in speech
sensory info from upper face, forehead, scalp, to CNS
mandible elevation for mastication
mandible sensory from lower teeth, hums and lips, portions of the tongue to CNS
sensory from upper face, forehead, scalp to CNS
Maxillary: sensory from teeth, upper lip, buccal, nasal cavities, sides of face to CNS

Question 3

VII

Answer 3

facial nerve- mixed sensory-motor
motor infor to the face
sensory taste-anterior 2/3 of tongue

function: facial expressions and taste.

temporal, zygomatic- motor info to the muscles of the upper face, bilaterally innervated

buccal, mandibular- motor info to the muscles of the lower face, unilaterally inntervated.

important for speech.

Question 4

bilateral innervation

Answer 4

recieves motor plans from both contralateral and ipsilateral hemispheres.
protective redundancy

bilateral and unilateral are in CN VII facial nerve

Question 5

unilateral innervation

Answer 5

recieve motor plans from the contralateral hemisphere of motormovement. there is no protextive redun

bilateral and unilateral are in CN VII facial nerve

Question 6

IX

Answer 6

glosso pharyngeal- both sensory and motor functions, mixed

sensory (taste) from the posterior 1/3 of the tongue

motor: to muscles of pharynx for swallowing and parotid gland for salavia

gag reflex, taste and swallowing

important for speech.

Question 7

X

Answer 7

Vagus nerve- Both sensory and motor
innervates muscles of the soft palate, pharynx, and larynx through various branches.

muscles for swallowing and elevates velum for non-nasal sounds.
vocal folds adduction

pharyngeal plexus and superior laryngal nerve

important for speech

Question 8

CN XI

Answer 8

acessory nerve- motor function

cranial component-acessory of vadus
spinal component innervates muscles of the shoulders- helps to keep your head up. supportive functions

important for speech

Question 9

CN XII

Answer 9

hypoglossal nerve- motor functions

innervates intrinsic muscles of the tongue (fine motor)
innervates most extrinsic muscles of the tongue (gross motor)

important for speech.

Question 10

I

Answer 10

olafactory- smell- sensory

Question 11

II

Answer 11

optic- sight- sensory

Question 12

III

Answer 12

oculomotor- eye movements (pupil, upper eyelid)- motor

Question 13

IV

Answer 13

trochlear- eye movements (downward gaze), motor

Question 14

VI

Answer 14

Abducens- eyemovements (abduction or lateral movements)- motor

Question 15

VIII

Answer 15

Vestibulocochlear- hearing/sense of balance- both (mixed) sensory//motor

Question 16

CN important for speech

Answer 16

V, VII, IX, X, XII, XII (5,7,9,10,11,12)

Question 17

CN V- Trigeminal nerve sensory/motor/ both and function

Answer 17

both- mandibular elevation andsensroy info, maxillary sensory, and upper face and for head scalp to CNS. mastication and chewing!

Question 18

CN VII- facial nerve sensory/moto/both and function

Answer 18

Both sensory and motor, facial expression but more specifically tast for the anterior 2/3 of the tongue.

Question 19

CN IX- glossopharyngeal sensory/moto/both and function

Answer 19

Both sensory and motor. sensory-taste for posterior 1/3 of tongue. also important for swallowing, gag reflex. motor to muscles of pharynx for swallowing and parotid gland.

Question 20

CN X- vagus nerve sensory/motor/both and function

Answer 20

Both sensory and motor. innervates muscles of the soft palate, pharynx and larynx through various branches. velar elevation, connected to IX innervates muscles for swallowing, vocal folds adduction

Question 21

CN XII acessory sensory/motor/or both and function

Answer 21

Motor, keep head up, supportive functions head and should muscle support.

Question 22

XII- hypoglossal nerve sensor, motor or both and function

Answer 22

Motor, innervates intrinsic muscles of the tongue (fine motor movements and extrinsim muscles of the tongue gross motor movements.