1: U1 CN's

Question 1

What is CN I?

Answer 1

olfactory nerve

Question 2

What is CN II?

Answer 2

optic nerve

Question 3

What is CN III?

Answer 3

oculomotor nerve

Question 4

What is CN IV?

Answer 4

trochlear nerve

Question 5

What is CN V?

Answer 5

Trigeminal nerve

Question 6

What is CN VI?

Answer 6

Abducens (abducent) nerve

Question 7

What is CN VII?

Answer 7

facial nerve

Question 8

What is CN VIII?

Answer 8

vestibulocochlear nerve

Question 9

What is CN IX?

Answer 9

glossopharyngeal nerve

Question 10

What is CN X?

Answer 10

vagus nerve

Question 11

What is CN XI?

Answer 11

accessory (spinal accessory) nerve

Question 12

What is CN XII?

Answer 12

hypoglossal nerve

Question 13

What is the olfactory CN classified as?

Answer 13

special sensory

Question 14

How do the olfactory CN fibers travel?

Answer 14

fibers in the olfactory mucosa traverse the cribriform plate and synapse in the olfactory bulb

Question 15

What is the optic CN (II) classified as?

Answer 15

special sensory

Question 16

How do the optic CN (II) fibers travel?

Answer 16

from retina, converge on optic disc, carried to optic nerve, chiasma and tract to the LATERAL GENICULATE BODIES

Question 17

What is the oculomotor CN (III) classified as?

Answer 17

motor; somatic and parasympathetic

Question 18

What does the oculomotor CN supply?

Answer 18

5 somatic muscles, 2 visceral smooth muscles

Question 19

What is the trochlear CN (IV) classified as?

Answer 19

somatic motor

Question 20

What muscle does the trochlear CN supply?

Answer 20

superior oblique

Question 21

What is the smallest cranial nerve?

Answer 21

the trochlear CN (IV)

Question 22

What is the apparent origin of CN IV (trochlear)?

Answer 22

posterior brain stem

Question 23

How is the Trigeminal CN (V) classifed?

Answer 23

mixed; somatic motor and sensory

Question 24

What is the nickname for the trigeminal CN (V)?

Answer 24

“Great sensory nerve of the face”; including: orbit, nasal cavity and paranasal sinuses, oral cavity, ear, and internal skull

Question 25

What is the largest CN?

Answer 25

trigeminal (V) CN

Question 26

What does the motor supply of CN V (trigeminal) supply?

Answer 26

muscles of mastication

Question 27

How is CN VI (abducent) classified?

Answer 27

somatic motor

Question 28

What does the abducent nerve supply?

Answer 28

the lateral rectus

Question 29

How does the lateral rectus muscle move the eyes?

Answer 29

turns eyes laterally to the side

Question 30

How is the facial CN (VII) classified?

Answer 30

mixed; motor: somatic and parasympathetic | sensory: somatic and special

Question 31

What is a nickname for CN VII (Facial)?

Answer 31

nerve of facial expression

Question 32

What does the facial nerve carry?

Answer 32

taste from the anterior 2/3 of the tongue

Question 33

What muscles does the facial nerve supply?

Answer 33

muscles of facial expression: stylohyoid and stapedius

Question 34

What glands are supplied by the facial CN?

Answer 34

lacrimal and salivary glands

Question 35

How is the vestibulocochlear CN (VIII) classified?

Answer 35

special sensory: hearing and equillibrium

Question 36

Where does the vestibulocochlear CN get its sensory info from?

Answer 36

cochlea and vestibule (nerves)

Question 37

How is the glossopharyngeal CN (IX) classified?

Answer 37

mixed motor: branchiomotor and parasympathetic sensory: somatic, special, and visceral

Question 38

What does CN IX (glossopharyngeal) carry?

Answer 38

taste from the posterior 1/3 of tongue

Question 39

What does the glossopharyngeal CN motor supply?

Answer 39

stylopharyngeus

Question 40

What is the parasympathetic supply of CN IX (glossopharyngeal) to?

Answer 40

parotid gland

Question 41

How is CN X (vagus) classified?

Answer 41

mixed motor: branchiomotor and parasympathetic sensory: somatic, special, and visceral

Question 42

What is the longest CN?

Answer 42

vagus (X)

Question 43

What does the motor supply of the vagus (X) CN to?

Answer 43

pharyngeal constrictors

Question 44

What is the parasympathetic supply of the Vagus (X) CN?

Answer 44

bronchi, heart, GI tract (esophagus to distal 1/3 of transverse colon)

Question 45

What is the classification of accessory (spinal accessory) XI CN?

Answer 45

motor

Question 46

What parts make up CN XI (spinal accessory)?

Answer 46

cranial and spinal parts

Question 47

What does the spinal accessory (CN XI) supply?

Answer 47

muscles of the larynx, pharynx, and palate (Cranial) | trapezius and sternocleidomastoid muscles (spinal)

Question 48

How is CN XII (hypoglossal) classified?

Answer 48

motor

Question 49

What muscles does CN XII (hypoglossal) supply?

Answer 49

intrinsic and extrinsic muscles of the tongue

Question 50

Where does CN I exit?

Answer 50

cribriform plate of ethmoid bone

Question 51

Where does CN II exit?

Answer 51

optic canal

Question 52

Where does CN III exit?

Answer 52

superior orbital fissure

Question 53

Where does CN IV exit?

Answer 53

superior orbital fissure

Question 54

Where does CN V1 exit?

Answer 54

superior orbital fissure

Question 55

Where does CN V2 exit?

Answer 55

foramen rotundum

Question 56

Where does CN V3 exit?

Answer 56

foramen ovale

Question 57

Where does CN VI exit?

Answer 57

superior orbital fissure

Question 58

Where does CN VII exit?

Answer 58

internal acoustic meatus

Question 59

Where does CN VIII exit?

Answer 59

internal acoustic meatus

Question 60

Where does CN IX exit?

Answer 60

jugular foramen

Question 61

Where does CN X exit?

Answer 61

jugular foramen

Question 62

Where does CN XI exit?

Answer 62

jugular foramen

Question 63

Where does CN XII exit?

Answer 63

hypoglossal canal