Cranical Nerves

Question 1

Cranial nerve 1

Answer 1

Olfactory

Question 2

Cranial nerve 2

Answer 2

Optic

Question 3

Cranial nerve 3

Answer 3

Occulomotor

Question 4

Cranial nerve 4

Answer 4

Trochlear

Question 5

Cranial nerve 5

Answer 5

Trigeminal nerve

Question 6

V1

Answer 6

Opthalmic

Question 7

V2

Answer 7

Mandibular

Question 8

V3

Answer 8

Maxillary

Question 9

Cranial nerve 6

Answer 9

Abducens

Question 10

Cranial nerve 7

Answer 10

Facial

Question 11

Branches of CN7

Answer 11

Temporal
Zygomatic
Buccal
Mandibular
Cervical

Question 12

Cranial nerve 8

Answer 12

Vestibulocochlear

Question 13

Cranial nerve 9

Answer 13

Glossopharyngeal

Question 14

Cranial nerve 10

Answer 14

Vagus

Question 15

Cranial nerve 11

Answer 15

Accessory

Question 16

Cranial nerve 12

Answer 16

Hypoglossal

Question 17

Which cranial nerves supply parasympathetic innervation?

Answer 17

3,7,9,10

Question 18

Where does CN1 exit the skull

Answer 18

Cribriform plate

Question 19

Where does CN2 exit the skull

Answer 19

Optic canal

Question 20

Where does CN3 exit the skull

Answer 20

Superior orbital fissure

Question 21

Where does CN4 exit the skull?

Answer 21

Superior orbital fissure

Question 22

Where does CN5 V1 exit the skull

Answer 22

Superior orbital fissure

Question 23

Where does CN5 V2 exit the skull

Answer 23

Foremen rotundum

Question 24

Where does CN5 V3 exit the skull

Answer 24

Forman’s ovale

Question 25

Where does CN 6 exit the skull

Answer 25

Superior orbital fissure

Question 26

Where does CN7 exit the skull

Answer 26

Internal auditory meatus

Question 27

Where does CN8 exit the skull

Answer 27

Internal auditory meatus

Question 28

Where does CN9 exit the skull

Answer 28

Jugular foramen

Question 29

Where does CN10 exit the skull

Answer 29

Jugular foramen

Question 30

Where does CN11 exit the skull

Answer 30

Jugular foramen

Question 31

Where does CN12 exit the skull

Answer 31

Hypoglossal canal

Question 32

Muscles innervated and function of CN1

Answer 32

Olfactory epithelium, olfaction

Question 33

Muscles innervated by and function of CN2

Answer 33

Retina

Vision

Question 34

Muscles innervated by CN3 and their function

Answer 34

Superior/middle/inferior rectus, inferior oblique, lavator palpebrae:eyeball movement
Pupillary constrictor, ciliary eyeball muscle:pupillary constriction and accommodation

Question 35

Muscles innervated by CN4 and their function

Answer 35

Superior oblique

Eyeball movement

Question 36

Muscles innervated by CN5 and their function

Answer 36

Face, scalp, cornea, nasal and oral cavities, cranial dura matter, mastication muscles, tensor tympani
General sensation, mouth movement, tension of tympanic membrane

Question 37

Muscles innervated by CN6 and their function?

Answer 37

Lateral rectus, eyeball movement

Question 38

Muscles innervated by CN7 and their function

Answer 38

Anterior 2/3 tongue, facial expression muscles, stapedius muscle salivary and lacrimal glands
Taste, facial movement, tension of ossicles, salivation and lacrimation

Question 39

Muscles innervated my CN8 and their function

Answer 39

Cochlea, vestibular apparatus

Hearing, food proprioceptiom

Question 40

Muscles innervated by CN9 and their function

Answer 40

Eustachian tube, middle ear, carotid body and sinus, pharynx, posterior 1/3 of tongue, styropharyngeus, optic ganglion
General sensation, chemo/bark reception, taste, swallowing, salivation

Question 41

Muscles innervated by CN10 and their function

Answer 41

Pharynx, larynx, oesophagus and external ear, aortic arch and bodies, thoracic and abdominal viscera, soft palate, cvr resp and gi systems
General and visceral sensation, speech swallowing

Question 42

Which muscles does CN11 innervate and what is their function?

Answer 42

Sternomastoid, trapezius

Movement of head and shoulders

Question 43

Muscles innervated by CB12 and their function?

Answer 43

Intrinsic and extrinsic tongue muscles

Tongue kovement