Cranial nerves

Question 1

Name the 12 cranial nerves

Answer 1

1. Olfactory
2. Optic
3. Oculomotor
4. Trochlear
5. Trigeminal
6. Abducens
7. Facial
8. Vestibulocochlear
9. Glossopharyngeal
10. Vagus
11. Accessory
12. Hypoglossal

Question 2

Olfactory nerve

Answer 2

Sense of smell

Question 3

Optical nerve

Answer 3

Sense of sight

Question 4

Oculomotor nerve

Answer 4

Raise eyelids, move eyes, regulate the size of pupils, focus of lenses.

Question 5

Trochlear nerve

Answer 5

Eye movements, proprioception

Innervates superior oblique muscle

Question 6

Trigeminal nerve

Answer 6

Sensations of the head and face, chewing movements, and muscle sense.

Question 7

Abducens nerve

Answer 7

Produce movements of the eyes

Lateral rectus muscle

Question 8

Facial nerve

Answer 8

Facial expressions, secretion of saliva, taste.

Question 9

Vestibulocochlear nerve

Answer 9

Balance or equilibrium sense.

Hearing.

Question 10

Glossopharyngeal nerve

Answer 10

Taste and other sensations of tongue, swallowing, secretion of saliva, aid in reflex control of blood pressure and respiration.

Stylopharyngeus muscle

Question 11

Vagus nerve

Answer 11

Transmit impulses to muscles associated with speech, swallowing, the heart, smooth muscles of visceral organs in the thorax, and abdomen.

Parasympathetic control of heart, lungs and digestive system

Question 12

Accessory nerve

Answer 12

Turning movements of the head, movements of the shoulder and viscera, voice production.

Trapezius and sternocleidomastoid

Question 13

Hypoglossal nerve

Answer 13

Tongue movements

All intrinsic and extrinsic tongue muscles