Cranial Nerves

Question 1

How many cranial nerves are there?

Answer 1

12

Question 2

List the cranial nerves in order

Answer 2

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

Question 3

How many cranial nerves are sensory?

Answer 3

3

Question 4

Which cranial nerves are sensory nerves?

Answer 4

Olfactory nerve (1)
Optic nerve (2)
Vestibulocochlear nerve (8)

Question 5

How many cranial nerves are motor nerves?

Answer 5

5

Question 6

Which of the cranial nerves are motor?

Answer 6

Oculomotor nerve (3)
Trochlear nerve (4)
Abducens nerve (6)
Accessory nerve (11)
Hypoglossal nerve (12)

Question 7

How many cranial nerves are both sensory and motor?

Answer 7

4

Question 8

Which cranial nerves are mixed (sensory and motor)?

Answer 8

Trigeminal nerve (5)
Facial nerve (7)
Glossopharyngeal nerve (9)
Vagus nerve (10)

Question 9

Cranial nerve number 1?

Answer 9

Olfactory nerve

Question 10

Cranial nerve number 2?

Answer 10

Optic nerve

Question 11

Cranial nerve number 3?

Answer 11

Oculomotor nerve

Question 12

Cranial nerve number 4

Answer 12

Trochlear nerve

Question 13

Cranial nerve number 5?

Answer 13

Trigeminal nerve

Question 14

Cranial nerve number 6?

Answer 14

Abducens nerve

Question 15

Cranial nerve number 7?

Answer 15

Facial nerve

Question 16

Cranial nerve number 8?

Answer 16

Vestibulocochlear nerve

Question 17

Cranial nerve number 9?

Answer 17

Glossopharyngeal nerve

Question 18

Cranial nerve number 10?

Answer 18

Vagus nerve

Question 19

Cranial nerve number 11?

Answer 19

Accessory nerve

Question 20

Cranial nerve number 12?

Answer 20

Hypoglossal nerve

Question 21

Function: sense of smell

Answer 21

Olfactory nerve (1)

Question 22

Function: provides vision

Answer 22

Optic nerve (2)

Question 23

Function: controls muscles that turn the eyeball up, down, and medially, as well as controlling the iris, lens, and upper eyelid
- superior rectus, inferior rectus, medial rectus, inferior oblique

Answer 23

Oculomotor nerve

Question 24

Function: eye movement (superior oblique muscle)

Answer 24

Trochlear nerve (4)

Question 25

Function: largest of the cranial nerves
- most important sensory nerve in face
-forks into three divisions

Answer 25

Trigeminal nerve (5)

Question 26

What are the three divisions of the Trigeminal nerve?

Answer 26

1. Ophthalmic division (sensory)
2. Maxillary division (motor)
3. Mandibular division (mixed)

Question 27

Function: provides eye movement
- controls lateral rectus
- if lateral rectus is paralyzed or damaged, eye will rotate medially

Answer 27

Abducens nerve (6)

Question 28

Function: major motor nerve of facial muscles: facial expressions; salivary glands and tear, nasal, and palatine glands
-sensory: taste on anterior two-thirds of tongue
- has five branches

Answer 28

Facial nerve (7)

Question 29

What are the five branches of the facial nerve?

Answer 29

1. Temporal
2. Zygomatic
3. Buccal
4. Mandibular
5. Cervical

Question 30

Function: nerve of hearing and equilibrium
- 2 branches
- Vestibular branch: balance
- Cochlear branch: vision

Answer 30

Vestibulocochlear nerve (8)

Question 31

Function: swallowing, salivation, gagging, control of BP and respiration
- sensation from posterior one-third of tongue

Answer 31

Glossopharyngeal nerve (9)

Question 32

Function: most extensive distribution of any cranial nerve (travels the furthest)
- major role in control of cardiac, pulmonary, digestive, and urinary function

Answer 32

Vagus nerve (10)

Question 33

Function: muscle control; head, neck, and shoulder movement

Answer 33

Accessory nerve (11)

Question 34

Function: tongue movements for speech, food manipulation, and swallowing
- if one side is damaged, tongue deviates toward the injured side

Answer 34

Hypoglossal nerve (12)