Cranial Nerves

Question 1

What is Cranial Nerve I Called?

Answer 1

Olfactory

Question 2

What is Cranial Nerve II Called?

Answer 2

Optic

Question 3

What is Cranial Nerve III Called?

Answer 3

Oculomotor

Question 4

What is Cranial Nerve IV Called?

Answer 4

Trochlear

Question 5

What is Cranial Nerve V Called?

Answer 5

Trigeminal

Question 6

What is Cranial Nerve VI Called?

Answer 6

Abducens

Question 7

What is Cranial Nerve VII Called?

Answer 7

Facial

Question 8

What is Cranial Nerve VIII Called?

Answer 8

Vestibulocochlear

Question 9

What is Cranial Nerve IX Called?

Answer 9

Glossopharyngeal

Question 10

What is Cranial Nerve X Called?

Answer 10

Vagus

Question 11

What is Cranial Nerve XI Called?

Answer 11

Accessory

Question 12

What is Cranial Nerve XII Called?

Answer 12

Hypoglossal

Question 13

What is the function of the olfactory nerve?

Answer 13

Conscious perception of smell

Question 14

What is the function of CN II?

Answer 14

Vision

Question 15

What structures does CN III innervate?

Answer 15

Dorsal/Ventral/Medial Recti Muscles
Ventral Oblique Muscle
Levator Palpebrae Superioris
Papillary Constriction

Question 16

What does the trochlear never innervate?

Answer 16

Dorsal Oblique Muscle

Question 17

Which of the following innervates the ipsilateral eye muscles:
CN III or CN IV?

Answer 17

CN III (oculomotor)

CN IV= contralateral

Question 18

Which CN has the following 3 branches:

Ophthalmic, Maxillary and Mandibular?

Answer 18

Trigeminal (V)

Question 19

What does the trigeminal nerve innervate for sensory perception?

Answer 19

Face

Question 20

What does the trigeminal nerve innervate for motor function?

Answer 20

Mucous membranes

Question 21

What does the abducens innervate?

Answer 21

IPSILATERAL lateral rectus

Retractor bulbi

Question 22

What does the facial nerve innervate for motor function?

Answer 22

Muscles of Facial Expression

Question 23

What parasympathetic innervation does CN VII contain?

Answer 23

lacrimal, mandibular & sublingual glands

Question 24

What does the facial nerve innervate for sensory perception?

Answer 24

ROSTRAL 2/3 of tongue

Question 25

What is the function of CNVIII?

Answer 25

Hearing and Vestibular Function

Question 26

What parasympathetic innervation does CN IX contain?

Answer 26

parodic and zygomatic glands

Question 27

What does the glossopharyngeal nerve innervate for sensory perception?

Answer 27

Caudal 1/3 tongue | Pharynx

Question 28

What does CN IX innervate for motor function?

Answer 28

Pharynx | Palate

Question 29

What does the motor portion of CN X innervate?

Answer 29

Larynx, pharynx, oesophagus

Question 30

What does the sensory portion of CN X innervate?

Answer 30

larynx/pharynx Thoracic viscera Abdominal viscera

Question 31

What does the parasympathetic portion of CN X innervate?

Answer 31

All thoracic and abdominal viscera (except pelvic region)

Question 32

What does the accessory nerve innervate?

Answer 32

Trapezius Partial Sternocephalicus Partial Brachiocephalicus

Question 33

What does the hypoglossal nerve innervate?

Answer 33

Tongue - motor

Question 34

Where do the axons of CN I run?

Answer 34

Pass cribriform plate | Synapse: olfactory bulb

Question 35

Where do the axons of CN II run?

Answer 35

Caudally: enter skull via optic canal | Join at: optic chiasm

Question 36

Where do the axons of CN III run?

Answer 36

Exit via orbital fissure

Question 37

Where is the nucleus of CN III?

Answer 37

Midbrain

Question 38

Where do the axons of CN IV run?

Answer 38

Exit via orbital fissure

Question 39

Where is the nucleus of CN IV?

Answer 39

Caudal Midbrain

Question 40

Where are the nuclei of CN V?

Answer 40

Motor: pons Sensory: through brainstem

Question 41

Where do the axons of CN VI run?

Answer 41

Exit via orbital fissure

Question 42

Where is the nucleus of CN VI?

Answer 42

Rostral Medulla

Question 43

Where are the nuclei of CN VIII?

Answer 43

Vestibular: Medulla Cochlear: Medulla

Question 44

Where is the nucleus of CN IX?

Answer 44

shares nuclei with X in caudal medulla

Question 45

Where is the nucleus of CN X?

Answer 45

shares nuclei with IX in caudal medulla

Question 46

Where is the nucleus of CN XI?

Answer 46

Caudal medulla

Question 47

Where is the nucleus of CN XII?

Answer 47

Caudal Medulla

Question 48

Where do the axons of CN XII exit?

Answer 48

Via Hypoglossal Foramen