Cranial Nerves

Question 1

What is the Mnemonic for the function of cranial nerves.

S = sensory
M = motor
B = both sensory and motor

Answer 1

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

Question 2

What is the mnemonic for the cranial nerve order?

Answer 2

On old Olympus towering tops a friendly Viking grew vines and hops

Question 3

What is the name and order of the cranial nerves?

Answer 3

I Olfactory 1
II Optic 2
III Oculomotor 3
IV trochlear 4
V Trigeminal 5
VI abducens 6
VII Facial 7
VIII Vestibuloconchlear 8
IX Glossopharyngeal 9
X Vagus 10
XI accessory 11
XII Hypoglossal 12

Question 4

Function of Olfactory nerve

Answer 4

Sensory: smell

Question 5

Function of optic nerve

Answer 5

Sensory: visual acuity

Question 6

Function of oculomotor

Answer 6

Function: eye movement, up, down, medial and lid elevation

Pupil dilation

Question 7

Function of trochlear

Answer 7

Motor: eye movement specifically medial and downward

Question 8

Trigeminal nerve function

Answer 8

Sensory: somatosensory ( touch and pain) from face and scalp

Motor muscles used in chewing

Question 9

Abducens nerve function

Answer 9

Motor: lateral eye movement, innervated lateral recurs muscle

Question 10

Facial nerve function

Answer 10

Sensory: taste, sour, sweet and salty. (2/3 of the tongue)
Motor: chewing, blinking, innervated lacrimal glands, facial expressions.

Question 11

Vestibulocochlear nerve function

Answer 11

Sensory: vestibular branch balance
Cochlear branch balance

Question 12

Glossopharyngeal nerve function

Answer 12

Motor: gag reflex, swelling
Sensory: taste posterior (1/3 of the tongue)

Question 13

Vagus nerve function

Answer 13

Motor, sensory and autonomic.

Functions of viscera, ie glands, digestive organs and heart rate.

Question 14

Accessory nerve function

Answer 14

Motor: movement of head and shoulders

Question 15

Hypoglossal nerve

Answer 15

Motor: movement of tongue