Cranial Nerves

Question 1

What is the mnemonic for the 12 cranial nerves?

Answer 1

Oh Oh Oh To Touch And Feel Very Good Velvet Ah Heaven

Question 2

What is CN 1 and its function?

Answer 2

Olfactory, smell impulses

Question 3

What is CN 2 and its function?

Answer 3

Optic, visual impulses

Question 4

What is CN 3 and its function?

Answer 4

Oculomotor, lateral, medial, and superior eye movements

- constricts pupils and elevates eyelids

Question 5

What is CN 4 and its function?

Answer 5

Trochlear, control inferomedial eye movement

Question 6

What is CN 5 and its function?

Answer 6

Trigeminal, sensory impulses of pain, touch, and temperature from the face
- influences biting and chewing

Question 7

What is CN 6 and its function?

Answer 7

Abducens, lateral eye movements

Question 8

What is CN 7 and its function?

Answer 8

Facial

• contains sensory fibers for taste
• stimulates secretions from salivary glands
• stimulates tears from lacrimal glands
• affects facial expressions

Question 9

What is CN 8 and its function?

Answer 9

Acoustic or vestibulocochlear

- hearing and balance

Question 10

What is CN 9 and its function?

Answer 10

Glossopharyngeal

• sensory fibers for taste on posterior third of tongue
• sensory fibers of the pharynx for gag reflex

Question 11

What is CN 10 and its function?

Answer 11

Vagus

• sensations from throat, larynx, heart, lungs, bronchi, GI Tract, and abdominal viscera
• swallowing, talking, and production of digestive juices

Question 12

What is CN 11 and its function?

Answer 12

Accessory

• promotes movement of the shoulders and head rotation
• some movement of the larynx

Question 13

What is CN 12 and its function?

Answer 13

Hypoglossal

- promotes tongue movement for movement of food and for talking