Cranial Nerves

Question 1

Cranial Nerve I

Answer 1

Olfactory Nerve

Question 2

What kind of nerve fiber is olfactory?

Answer 2

Sensory Nerve

Question 3

What is the function of cranial nerve is olfactory?

Answer 3

Smell

Question 4

Cranial Nerve II

Answer 4

Optic Nerve

Question 5

What kind of nerve fiber is optic?

Answer 5

Sensory Nerve

Question 6

What is the function of cranial nerve is optic?

Answer 6

Vision

Question 7

Cranial Nerve III

Answer 7

Oculomoter

Question 8

What kind of nerve fiber is oculomotor?

Answer 8

Motor Nerve

Question 9

What is the function of cranial nerve is oculomotor

Answer 9

Eye movement (extrinsic eye muscles); Pupil (iris) constriction & focus of lens

Question 10

Cranial Nerve IV

Answer 10

Trochlear

Question 11

What kind of nerve fiber is trochlear?

Answer 11

Motor Nerve

Question 12

What is the function of cranial nerve trochlear?

Answer 12

Eye movement (extrinsic eye muscles)

Question 13

Cranial Nerve V

Answer 13

Trigeminal

Question 14

What kind of nerve fiber is trigeminal?

Answer 14

Motor & Sensory nerve

Question 15

What is the function of cranial nerve trigeminal?

Answer 15

Sensory: Face, lips, gums, teeth & tongue (not taste buds)

Motor: Muscles for chewing

Question 16

Cranial Nerve VI

Answer 16

Abducens

Question 17

What kind of nerve fiber is abducens?

Answer 17

Motor Nerve

Question 18

What is the function of cranial nerve is abducens?

Answer 18

Eye movement (extrinsic eye muscles)

Question 19

Cranial Nerve VII

Answer 19

Facial

Question 20

What kind of nerve fiber is facial?

Answer 20

Motor & Sensory Nerve

Question 21

What is the function of cranial nerve is facial?

Answer 21

Motor:
Somatic Motor Function: muscles for facial expression
Parasympathetic Motor: impulses to lacrimal & salivary glands

Sensory: Taste form anterior 2/3rds of tongue

Question 22

Cranial Nerve VIII

Answer 22

Vestibulocochlear

Question 23

What kind of nerve fiber is vestibulocochlear?

Answer 23

Sensory Nerve

Question 24

What is the function of cranial nerve vestibulocochlear?

Answer 24

Hearing & Balance

Question 25

Cranial Nerve IX

Answer 25

Glossopharyngeal

Question 26

What kind of nerve fiber is glossopharyngeal?

Answer 26

Motor & Sensory Nerve

Question 27

What is the function of cranial nerve is glossopharyngeal?

Answer 27

Somatic Motor Function: innervate part of tongue & pharynx for swallowing Parasympathetic Motor Function: fibers to the parotid salivary glands Sensory: fibers conduct taste & general sensory impulses from the pharynx & posterior tongue , & impulses from carotid chemoreceptors and baroreceptors

Question 28

Cranial Nerve X

Answer 28

Vagus

Question 29

What kind of nerve fiber is vagus?

Answer 29

Motor & Sensory Nerve

Question 30

What is the function of cranial nerve is vagus?

Answer 30

Somatic Motor Function: pharynx & larynx muscles for swallowing Parasympathetic Motor Function: fibers that help regulate the heart, lungs & abdominal viscera Sensory: Fivers carry impulses from thoracic & abdominal viscera, aortic arch baroreceptors, carotid & aortic chemoreceptors, pharynx & taste buds of posterior tongue

Question 31

Cranial Nerve XI

Answer 31

Accessory

Question 32

What kind of nerve fiber is accessory?

Answer 32

Motor Nerve

Question 33

What is the function of cranial nerve is accessory?

Answer 33

Sternocleiodmastoid muscle & trapezius muscle

Question 34

Cranial Nerve XII

Answer 34

Hypoglossal

Question 35

What kind of nerve fiber is hypoglossal?

Answer 35

Motor Nerve

Question 36

What is the function of cranial nerve hypoglossal?

Answer 36

Swallowing (tongue)

Question 37

What is the cranial nerve fiber type mnemonic?

Answer 37

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