Cranial Nerves

Question 1

CN I

Answer 1

Olfactory

Question 2

CN II

Answer 2

Optic

Question 3

CN III

Answer 3

Oculomotor

Question 4

CN IV

Answer 4

Trochlear

Question 5

CN V

Answer 5

Trigeminal

Question 6

CN VI

Answer 6

Abducens

Question 7

CN VII

Answer 7

Facial

Question 8

CN VIII

Answer 8

Vestibulocochlear

Question 9

CN IX

Answer 9

Glossopharyngeal

Question 10

CN X

Answer 10

Vagus

Question 11

CN XI

Answer 11

Accessory

Question 12

CN XII

Answer 12

Hypoglossal

Question 13

Which CNs are sensory only?

Answer 13

I- Olfactory
II- Optic
VIII- Vestibulocochlear

Question 14

Which CNs are motor only?

Answer 14

None

Question 15

Which CNs are both motor and sensory?

Answer 15

III- Oculomotor
IV- Trochlear
V- Trigeminal
VI- Abducens
VII- Facial
IX- Glossopharyngeal
X- Vagus
XI- Accessory
XII- Hypoglossal

Question 16

What are some of the functions of CN I- Olfactory?

Answer 16

Olfaction- smell

Question 17

What are some of the function so of CN II- Optic?

Answer 17

Vision

Question 18

What are some of the function of CN III- Oculomotor?

Answer 18

Serves muscles of the eye

Question 19

What are some of the functions of CN IV- Trochlear?

Answer 19

Serves the superior oblique eye muscle

Question 20

What are some of the functions of CN V- Trigeminal?

Answer 20

Sensory from face and mouth; motor to muscles of mastication (chewing)

Question 21

What are some of the functions of CN VI- Abducens?

Answer 21

Serves the lateral rectus eye muscle

Question 22

What are some of the functions of CN VII- Facial?

Answer 22

Serves the muscles of facial expression, lacrimal glands, and salivary glands

Question 23

What are some of the functions of CN VIII- Vestibulocochlear?

Answer 23

Equilibrium and hearing

Question 24

What are some of the functions of CN IX- Glossopharyngeal?

Answer 24

Serves the pharynx (throat) for swallowing, posterior third of tongue, parotid salivary gland

Question 25

What are some of the functions of CN X- Vagus?

Answer 25

Sensations from visceral (internal) organs, and parasympathetic motor regulation of visceral organs

Question 26

What are some of the functions of CN XI- Accessory?

Answer 26

Serves muscles that move head, neck, and shoulders

Question 27

What are some of the functions of CN XII- Hypoglossal?

Answer 27

Serves muscles of the tongue

Question 28

Take a quiz

Answer 28

http://www.gwc.maricopa.edu/class/bio201/cn/cranqzr2.htm

Question 29

What is the anatomical origin for CN I?

Answer 29

cerebral hemispheres

Question 30

What is the anatomical origin for CN II?

Answer 30

Diencephalon

Question 31

What is the anatomical origin for CN III & CN IV?

Answer 31

Midbrain

Question 32

What is the anatomical origin for CN V, VI, and VII?

Answer 32

Pons

Question 33

What is the anatomical origin for CN VIII?

Answer 33

Pons, medulla

Question 34

What is the anatomical origin for CN IX, CN X, CN XII?

Answer 34

Medulla

Question 35

What is the anatomical origin for CN XI?

Answer 35

Medulla, spinal cord

Question 36

What CN are involved in speech production?

Answer 36

``` V- Trigeminal IX- Glossopharyngeal X- Vagus XI- Accessory XII- Hypoglossal ```