Cranial Nerves

Question 1

CNII

Answer 1

Optic Nerve

Question 2

CNIII

Answer 2

Oculomotor Nerve

Question 3

CNIV

Answer 3

Trochlear Nerve

Question 4

CNV

Answer 4

Trigeminal Nerve

Question 5

What are the three divisions of the trigeminal nerves?

Answer 5

Ophthalmic division, Maxillary Division, Mandibular Division

Question 6

CNVII

Answer 6

Facial Nerve

Question 7

CNVIII

Answer 7

Vestibulocochlear Nerve

Question 8

CNIX

Answer 8

Glossopharyngeal nerve

Question 9

CNX

Answer 9

Vagus Nerve

Question 10

CNXI

Answer 10

Accessory Nerve

Question 11

What are the two components of CNXI?

Answer 11

Cranial Motor Component and Spinal Motor Component

Question 12

CNXII

Answer 12

Hypoglossal Nerve

Question 13

CN1

Answer 13

Olfactory Nerve

Question 14

What nerve passes through the cribriform plate?

Answer 14

Olfactory Nerve CN I

Question 15

What cranial nerve and artery passes through the optic canal?

Answer 15

Optic nerve CN II and opthalamic artery

Question 16

What nerves pass through the superior orbital fissure?

Answer 16

Oculomotor (CN III) , trochlear (CN IV), opthalamic branch of the trigeminal nerve (CN V), and the abducens nerve (CN VI)

Question 17

What nerve passes through foramen rotundum?

Answer 17

Maxillary division of the trigeminal nerve (CN V)

Question 18

What nerve passes through the foramen ovale?

Answer 18

Mandibular division of the trigeminal nerve (CN V)

Question 19

What artery passes through the foramen spinosum?

Answer 19

Middle meningeal artery

Question 20

The foramen lacerum is closed with what kind of cartilage?

Answer 20

Fibrocartilage

Question 21

What passes through the carotid canal?

Answer 21

Internal carotid artery passing along the superior margin of the foramen lacerum

Question 22

What nerves pass through the internal acoustic canal?

Answer 22

Vestibulocochlear nerve (CN VIII) and Facial Nerve (CN VII) entering the skull

Question 23

What nerves pass through the jugular foramen?

Answer 23

Glossopharyngeal (CN IX) , vagus (X), and accessory nerves (CN XI, spinal motor component, and cranial motor component. Internal jugular vein

Question 24

What passes through the foramen magnum?

Answer 24

Vertebral arteries. Right and left. Spinal motor component of the accessory nerve (CN XI).

Question 25

What foramen is a landmark division between the medulla oblongata and spinal cord of the CNS?

Answer 25

Foramen magnum

Question 26

What nerve passes through the hypoglossal canal?

Answer 26

Hypoglossal nerve (CN XII)

Question 27

What passes through the infra orbital foramen in an anterior view?

Answer 27

Maxillary division of the trigeminal nerve (CN V)

Question 28

What passes through the mental foramen in the anterior view?

Answer 28

Mental nerve of the Mandibular division CN V

Question 29

What passes through the incisive foramen in the inferior view?

Answer 29

Nasopalatine nerve

Question 30

What passes through the Mandibular foramen from an inferior view?

Answer 30

Inferior alveolar nerve (branch of the Mandibular division of CN V)

Question 31

What passes through the stylomastoid foramen from an inferior view?

Answer 31

Facial nerve (CN VII) exiting the skull

Question 32

What innervates the anterior belly of the digastric?

Answer 32

Mandibular branch of the trigeminal nerve CN V

Question 33

What innervates the posterior belly of the digastric?

Answer 33

Facial Nerve CN VII

Question 34

What innervates the stylohyoid?

Answer 34

Facial Nerve CN VII

Question 35

What innervates the mylohyoid?

Answer 35

Mandibular branch of the trigeminal Nerve CN V

Question 36

What innervates the thyrohyoid?

Answer 36

Hypoglossal Nerve CN XII

Question 37

What innervates the sternocleidomastoid?

Answer 37

Accessory Nerve CN XI

Question 38

What innervates the cricothyroid?

Answer 38

Vagus Nerve CN X

Question 39

Name innervation(s) of the olfactory CN I and whether it is sensory or motor?

Answer 39

Nasal cavity/smell. Sensory

Question 40

Name innervation of optic nerve CN II and whether it is sensory or motor.

Answer 40

Eye/vision. Sensory

Question 41

Name innervation of CNIII and whether it is sensory or motor.

Answer 41

Extrinsic muscles of eye. Motor

Question 42

Innervation and function of CN IV

Answer 42

Superior oblique muscle of eye. Motor

Question 43

Innervation and function of CNV ophthalmic branch

Answer 43

Skin of eyelids, scalp, nose, lacrimal gland. Sensory

Question 44

Innervation and function of CN V Maxillary Branch

Answer 44

Upper teeth, palate, skin of cheek, upper lip. Sensory

Question 45

Innervation and function of CN V Mandibular branch

Answer 45

Tongue, lower teeth, skin of jaw, and temporal region. Sensory

Question 46

Innervation and function of CN 6

Answer 46

Lateral rectus muscle.motor

Question 47

Innervation and function of CN VII

Answer 47

Taste buds of tongue (sensory) and stimulate glands skeletal muscle of face (motor)

Question 48

Innervation and function of CN VIII

Answer 48

Vestibular branch, equilibrium (sensory) and cochlear branch, hearing (sensory)

Question 49

Innervation and function of CN IX

Answer 49

Pharyngeal muscles, parotid gland (motor) and posterior tongue, pharynx, and carotid sinus (sensory)

Question 50

Innervation and function of CN X

Answer 50

Pharyngeal and laryngeal muscles, lungs, abdominal viscera (motor). Pharynx, larynx, and visceral organs (sensory)

Question 51

CN XI innervation and function

Answer 51

Trapezius and sternocleidomastoid, pharynx, larynx, and soft palate (motor)

Question 52

CN XII innervation and function

Answer 52

Extrinsic and intrinsic muscle of tongue (motor)