Cranial Nerves

Question 0

Function Cranial nerve 4

Answer 0

Trochlear. Superior oblique ms. Eye move down and rotate in

Question 1

Function Cranial nerve 3

Answer 1

Oculomotor. Extra ocular ms. Pupil constrict. Near vision

Question 2

Function Cranial nerve 5

Answer 2

Trigeminal nerve.

Touch, pain, temp, vibration, propriocep. Of face, mouth, nasal, meninges. Muscles mastication. Tensor tympani ms.

Question 3

Function Cranial nerve 6

Answer 3

Abducens.

Lateral rectus ms. Abduction eye.

Question 4

Function Cranial nerve 7

Answer 4

Facial nerve

Facial expression. Taste anterior 2/3 tongue, sensation near ear. Parasympathetic lacrimal and salivary glands

Question 5

Function Cranial nerve 8

Answer 5

Vestibulocochlear

Hearing. Vestibular

Question 6

Function Cranial nerve 9

Answer 6

Glossopharyngeal
Taste post. 1/3 tongue. Chemo and baroreceptors carotid body. Parasympathetic to parotid. Salivary. Sensation post pharynx

Question 7

Function Cranial nerve 10

Answer 7

Vagus
Pharyngeal muscles (swallowing). Laryngeal ms (voicebox). Parasympathetics heart, lung, digestive tract. Aortic arch chemo and baroreceptors. Sensation pharynx, posterior meninges, posterior ear.

Question 8

Function Cranial nerve 11

Answer 8

Spinal accessory nerve

SCM. Upper trapezius.

Question 9

Function Cranial nerve 12

Answer 9

Hypoglossal

Intrinsics of tongue

Question 20

Test CN 1.

Answer 20

Olfactory. Smell coffee/soap

Question 21

Test CN 2

Answer 21

Optic
Test each eye separate.
Visual acuity
Color
Visual field
Double simultaneous extinction
Pupillary response