Cranial and Spinal Nerves

Question 1

1st cranial nerve

Answer 1

Olfactory (smell)

Question 2

2nd cranial nerve

Answer 2

Optic (vision)

Question 3

3rd cranial nerve

Answer 3

Oculomotor

Question 4

4th cranial nerve

Answer 4

Trochlear

Question 5

6th cranial nerve

Answer 5

Abducens

Question 6

What do cranial nerves 3,4, and 6 do?

Answer 6

Send info to the muscles that move the eye

Question 7

5th cranial nerve

Answer 7

Trigeminal: face, sinuses, teeth, and jaw muscles

Question 8

7th cranial nerve

Answer 8

Facial: tongue, soft palate, facial muscles, salivary glands, tear glands

Question 9

8th cranial nerve

Answer 9

Vestibulocochlear: inner ear which deals with hearing and balance

Question 10

9th cranial nerve

Answer 10

Glossopharyngeal: taste and other mouth sensations, throat muscles

Question 11

10th cranial nerve

Answer 11

Vagus: info from internal organs, provide feedback to control internal organs

Question 12

11th cranial nerve

Answer 12

Spinal accessory: neck muscles

Question 13

12th cranial nerve

Answer 13

Hypoglossal: tongue muscles

Question 14

How many pairs of spinal nerves are there?

Answer 14

31 pairs

Question 15

What is the order of the spinal nerves from top to bottom?

Answer 15

Cervical, thoracic, lumbar, sacral, coccyx

Question 16

How many pairs of cervical nerves are there?

Answer 16

8 pairs

Question 17

How many pairs of thoracic nerves are there?

Answer 17

12 pairs

Question 18

How many pairs of lumbar nerves are there?

Answer 18

5 pairs

Question 19

How many pairs of sacral nerves are there?

Answer 19

5 pairs

Question 20

How many pairs of coccyx nerves are there?

Answer 20

Only one pair

Question 21

How many cranial nerves are purely sensory?

Answer 21

3 pairs of cranial nerves: olfactory, optic, and vestibulocochlear

Question 22

How many cranial nerves are only for motor functions?

Answer 22

5 pairs: oculomotor, trochlear, abducens, spinal accessory, hypoglossal