3.1 neuro - cranial nerves

Question 1

Name CN I

Answer 1

olfactory

Question 2

Name CN II

Answer 2

optic

Question 3

Name CN III

Answer 3

oculomotor

Question 4

Name CN IV

Answer 4

trochlear

Question 5

Name CN V

Answer 5

trigeminal

Question 6

Name CN VI

Answer 6

abducens

Question 7

Name CN VII

Answer 7

facial

Question 8

Name CN VIII

Answer 8

vestibulocochlear

Question 9

Name CN X

Answer 9

vagus

Question 10

Name CN IX

Answer 10

glossopharyngeal

Question 11

Name CN XI

Answer 11

accessory

Question 12

Name CN XII

Answer 12

hypoglossal

Question 13

What number cranial nerve is the olfactory

Answer 13

I

Question 14

What number cranial nerve is the optic

Answer 14

II

Question 15

What number cranial nerve is the oculomotor

Answer 15

III

Question 16

What number cranial nerve is the trochlear

Answer 16

IV

Question 17

What number cranial nerve is the trigeminal

Answer 17

V

Question 18

What number cranial nerve is the abducens

Answer 18

VI

Question 19

What number cranial nerve is the vestibulocochlear

Answer 19

VIII

Question 19

What number cranial nerve is the facial

Answer 19

VII

Question 20

What number cranial nerve is the vagus

Answer 20

X

Question 21

What number cranial nerve is the glossopharyngeal

Answer 21

IX

Question 22

What number cranial nerve is the accessory

Answer 22

XI

Question 23

What number cranial nerve is the hypoglossal

Answer 23

XII

Question 24

What is the modality (sensory/motor/mixed) of CN I olfactory

Answer 24

Somatic

Question 25

What is the modality (sensory/motor/mixed) of CN II optic

Answer 25

Somatic

Question 26

What is the modality (sensory/motor/mixed) of CN III oculomotor

Answer 26

Motor

Question 27

What is the modality (sensory/motor/mixed) of CN IV trochlear

Answer 27

Motor

Question 28

What is the modality (sensory/motor/mixed) of CN V trigeminal

Answer 28

Both

Question 29

What is the modality (sensory/motor/mixed) of CN VI abducens

Answer 29

Motor

Question 30

What is the modality (sensory/motor/mixed) of CN VII facial

Answer 30

Both

Question 31

What is the modality (sensory/motor/mixed) of CN VIII vestibulocochlear

Answer 31

Somatic

Question 32

What is the modality (sensory/motor/mixed) of CN IX glossopharyngeal

Answer 32

Both

Question 33

What is the modality (sensory/motor/mixed) of CN X vagus

Answer 33

Both

Question 34

What is the modality (sensory/motor/mixed) of CN XI accessory

Answer 34

Motor

Question 35

What is the modality (sensory/motor/mixed) of CN XII hypoglossal

Answer 35

Motor

Question 36

Name the targets and location of CN I olfactory

Answer 36

sense of smell extends from olfactory mucosa of nasal cavity to olfactory bulb neurons of the olfactory bulb project directly to the limbic cortex

Question 37

Name the targets of CN II optic

Answer 37

vision sense carries signals from neural retina to thalamus half the information crosses to the contralateral thalamus and cortex, half projects to the ipsilateral thalamus and cortex optic nerve > optic chiasm (crossing occurs) > optic tract

Question 38

Name the targets of CN III oculomotor

Answer 38

somatic, 5 extrinsic eye muscles - levator palpebrae superioris - superior rectus - inferior rectus - medial rectus - inferior oblique parasympathetic (visceral motor), 2 intrinsic eye muscles - ciliary muscle, allows for accomodation of near vision / changing shape of lense - sphincter pupillae, constriction of pupil

Question 39

Name the targets of CN IV trochlear

Answer 39

somatic, 1 extrinsic eye muscle superior oblique

Question 40

Name the targets of CN V trigeminal

Answer 40

motor: muscles of mastication sensory: face and oral cavity (anterior 2/3 of tongue and teeth) 3 branches - ophthalmic (sensory) - maxillary (sensory) - mandibular (sensory and motor)

Question 41

Name the targets of CN VI abducens

Answer 41

somatic, 1 extrinsic eye muscle lateral rectus

Question 42

Name the targets of CN VII facial

Answer 42

parasympathetic (visceral motor): submandibular and sublingual glands, nasal and oral mucosa, lacrimal glands somatic motor: muscles of facial expression sensory: taste on anterior 2/3 of the tongue

Question 43

Name the targets of CN VIII vestibulocochlear

Answer 43

cochlear branch: carries auditory information from the cochlea vestibular branch: carries information concerning balance from the vestibular apparatus and semicircular canals

Question 44

Name the targets of CN IX glossopharyngeal

Answer 44

parasympathetic (visceral motor): parotid gland somatic motor: stylopharyngeus muscle, lifts throat during swallowing sensory: general sensation and taste on the posterior 1/3 of the tongue nerve to the carotid body and carotid sinus

Question 45

Name the targets of CN X vagus

Answer 45

parasympathetic (visceral motor): to thoracic and abdominal viscera, innervates gut to the splenic flexure somatic motor: constriction of muscles in the pharynx, intrinsic muscles of the larynx sensory: pharynx and larynx

Question 46

Name the targets of CN XI accessory

Answer 46

motor: somatic spinal portion arises in the cervical spinal cord and innervated the sternocleidomastoid and trapezius muscles

Question 47

Name the targets of CN XII hypoglossal

Answer 47

motor: somatic intrinsic and extrinsic muscles of the tongue

Question 48

Where does CN I olfactory connect to the brain stem

Answer 48

it does not

Question 49

Where does CN II optic connect to the brain stem

Answer 49

it does not

Question 50

Where does CN III oculomotor connect to the brain stem

Answer 50

midbrain

Question 51

Where does CN IV trochlear connect to the brain stem

Answer 51

midbrain

Question 52

Where does CN V trigeminal connect to the brain stem

Answer 52

pons

Question 53

Where does CN VI abducens connect to the brain stem

Answer 53

pons

Question 54

Where does CN VII facial connect to the brain stem

Answer 54

pons

Question 55

Where does CN VIII vistibulocochlear connect to the brain stem

Answer 55

medulla

Question 56

Where does CN IX glossopharyngeal connect to the brain stem

Answer 56

medulla

Question 57

Where does CN X vagus connect to the brain stem

Answer 57

medulla

Question 58

Where does CN XI accessory connect to the brain stem

Answer 58

spinal cord

Question 59

Where does CN XII hypoglossal connect to the brain stem

Answer 59

medulla