Cranial nerves

Question 1

i. Olfactory Nerve

Answer 1

Sensory only - smell

Question 2

ii. Optic Nerve

Answer 2

Sensory only - vision

Question 3

iii. Occulomotor (Controls eye muscles)

Answer 3

Motor- medial, inferior & superior rectus, inferior oblique
sensory- proprioception
PS- Iris and lens .constriction of the pupils and lens budge = close vision

Question 4

iv. Trochlea Nerve

Answer 4

Motor- superior oblique

sensory - proprioception

Question 5

v. Trigeminal Nerve

Answer 5

Motor- chewing muscles

sensory- proprioception, sensation on face

Question 6

vi. Abducens

Answer 6

Motor- lateral rectus

sensory- proprioception

Question 7

vii. Facial

Answer 7

Motor- muscles of facial expression
sensory- proprioception, taste from ant. 2/3 tongue
PS- lacrimal glands- produces tears-moistens clean eyes, submandibular-make saliva and sublingual glands-make saliva.

Question 8

viii. Vestibulocochlear

Answer 8

sensory- vestibular division- balance and equilibrium

cochlear division- hearing

Question 9

ix. Glossopharyngeal

Answer 9

Motor- muscles to tongue and pharynx
sensory- proprioception ; taste from posterior tongue
PS - parotid gland- makes saliva

Question 10

x. Vagus

Answer 10

motor- muscles of pharynx and larynx
sensory- proprioception; taste from pharynx
PS- heart, lungs, abdominal viscera
Function : decreased heart and respiratory rate and increases digestive organs

Question 11

xi Accessory

Answer 11

Motor- pharynx, larynx, soft palate, trapezuis, sternocleidomastoid.
sensory- proprioception

Question 12

xii. Hypoglossal

Answer 12

motor- muscles of the tongune

sensory- proprioception

Question 13

Nerves that control the eye

Answer 13

3, 4 , ,6

Question 14

4 cranial nerves carrying PS fibers

Answer 14

3, 7, 9 ,10

Question 15

Sensory nerve only

Answer 15

1,2 and 8

Question 16

Taste sensation

Answer 16

7 , 9 ,10