12 Cranial Nerves and their Divisions

Question 1

What is cranial nerve I

Answer 1

Olfactory

Question 2

What is cranial nerve II

Answer 2

Optic

Question 3

What is cranial nerve III

Answer 3

Oculomotor

Question 4

What is cranial nerve IV

Answer 4

Trochlear

Question 5

What is cranial nerve V

Answer 5

Trigeminal

Question 6

What is cranial nerve VI

Answer 6

Abducens

Question 7

What is cranial nerve VII

Answer 7

Facial

Question 8

What is cranial nerve VIII

Answer 8

Vestibulocochlear

Question 9

What is cranial nerve IX

Answer 9

Glossopharyngeal

Question 10

What is cranial nerve X

Answer 10

Vagus

Question 11

What is cranial nerve XI

Answer 11

Accessory

Question 12

What is cranial nerve XII

Answer 12

Hypoglossal

Question 13

What division is cranial nerve I

Answer 13

sensory

Question 14

What division is cranial nerve II

Answer 14

sensory

Question 15

What division is cranial nerve III

Answer 15

motor

Question 16

What division is cranial nerve IV

Answer 16

motor

Question 17

What division is cranial nerve V

Answer 17

sensory and motor

Question 18

What division is cranial nerve VI

Answer 18

motor

Question 19

What division is cranial nerve VII

Answer 19

sensory and motor

Question 20

What division is cranial nerve VIII

Answer 20

sensory

Question 21

What division is cranial nerve IX

Answer 21

sensory and motor

Question 22

What division is cranial nerve X

Answer 22

sensory and motor

Question 23

What division is cranial nerve XI

Answer 23

motor

Question 24

What division is cranial nerve XII

Answer 24

motor

Question 25

What is the afferent function of cranial nerve I

Answer 25

odor from the nose

Question 26

What is the afferent function of cranial nerve II

Answer 26

vision from the retina

Question 27

What is the afferent function of cranial nerve VIII

Answer 27

hearing and balance from inner ear

Question 28

What is the efferent function of cranial nerve III

Answer 28

moves most of the eye’s muscles

Question 29

What is the efferent function of cranial nerve IV

Answer 29

moves one extraocular nerves (SO)

Question 30

What is the efferent function of cranial nerve VI

Answer 30

moves one extraocular nerve (LR)

Question 31

What is the efferent function of cranial nerve XI

Answer 31

neck muscles

Question 32

What is the efferent function of cranial nerve XII

Answer 32

all tongue muscles, both intrinsic and extrinsic except palatoglossus

Question 33

What are the afferent and efferent functions of cranial nerve V

Answer 33

afferent: general sensation from skin of face, oral mucosa, anterior 2/3 of tongue, and teeth

efferent: muscles of mastication

Question 34

What is the afferent function of V1 (Ophthalmic)

Answer 34

forehead area

Question 35

What is the afferent function of V2 (Maxillary)

Answer 35

upper jaw area

Question 36

What are the afferent and efferent functions of V3

Answer 36

afferent: lower jaw area including general sensation for the anterior 2/3 of tongue

efferent: muscles of mastication

Question 37

What are the afferent and efferent functions of cranial nerve VII

Answer 37

efferent: muscles of facial expressions, lacrimal gland, submandibular and sublingual salivary glands

afferent: taste from body (anterior 2/3) of tongue

Question 38

What are the afferent and efferent functions of cranial nerve IX

Answer 38

efferent: a pharyngeal muscle, parotid salivary gland

afferent: taste and general sensation from base (posterior 1/3) of tongue

Question 39

What are the afferent and efferent functions of cranial nerve X

Answer 39

efferent: muscles of soft palate and pharynx

afferent: (small component) taste for epiglottis