Exam 02 - cranial nerves

Question 1

Hoarseness owing to paralysis of vocal folds is caused by:

Answer 1

brainstem lesion

deep laceration of neck

Question 2

Parasympathetic fibers of the Vagus nerve innervate:

Answer 2

smooth muscle of trachea
digestive tract & cardiac muscle
bronchi

Question 3

All of the statements about the vagus nerve are true except:

a. 10th cranial nerve
b. have 1 sensory nuclei & 1 motor nuclei
c. exits the cranium through jugular foramen
d. provides sensory fibers to the abdominal viscera until left cardiac flexure

Answer 3

d. provides sensory fibers to the abdominal viscera until left cardiac flexure

Question 4

What type of nerve is CN XII?

Answer 4

motor nerve

Question 5

What does CN XII innervate?

Answer 5

tongue

Question 6

CN XII terminates into which part?

Answer 6

anterior

Question 7

The spinal part of the accessory nerve innervates what muscle?

Answer 7

SCM & Trapezius

Question 8

Which part of the accessory nerve arises from nucleus ambiguous?

Answer 8

cranial part

Question 9

Laceration of the neck causes contraction of the SCM, superior fibers of trapezius, and drooping of the shoulder

Answer 9

FALSE

Question 10

The spinal part arises from a column of posterior horn motor neurons in the superior 4th segment of the spinal cord:

Answer 10

FALSE

Question 11

What is the name of CN VII?

Answer 11

Facial nerve

Question 12

What is the name for CN VIII

Answer 12

Vestibulocohlear nerve

Question 13

What is the name of CN IX?

Answer 13

glossopharyngeal nerve

Question 14

Which foramen does the facial nerve exit from?

Answer 14

cranium to stylomastoid foramen

Question 15

Name cranial nerve that has its origin from the Ventrolateral part of the pons?

Answer 15

Facial nerve

Question 16

Name the cranial nerve responsible for closing of the eye?

Answer 16

CN VII (facial nerve)

Question 17

Name the cranial nerve that innervate the parotid gland?

Answer 17

glossopharyngeal nerve (CN IX)

Question 18

Which CN function is the motor supply to stylopharyngeus to assist with swallowing?

Answer 18

gloosopharyngeal nerve (CN IX)

Question 19

A lesion of which cranial nerve would result in deafness?

Answer 19

vestibulocochlear nerve (CN VIII)

Question 20

Where does the 9th CN exit?

Answer 20

jugular foramen

Question 21

Which of the following is not a branch of the Trigeminal nerve?

a. maxillary
b. vestibulocohlear
c. ophthalmic
d. mandibular

Answer 21

b. vestibulocochlear

Question 22

Which nerve is the largest of all cranial nerves?

Answer 22

trigeminal nerve

Question 23

What is the origin of the trochlear nerve?

Answer 23

midbrain, caudal to oculomotor nucleus at the level of inferior colliculus

Question 24

What does cranial nerve IV supply?

Answer 24

one muscle of the eye, the superior oblique m

Question 25

The sensory root of the trigeminal nerve is composed mainly of:

Answer 25

pseudounipolar neurons

Question 26

The abducens innervates:

Answer 26

rectus lateralis

Question 27

Through which of the following does the ophthalmic nerve exit the skull?

Answer 27

superior orbital fissure

Question 28

Which branch of the trigeminal nerve is a mixed nerve?(motor & sensory)

Answer 28

mandibular

Question 29

The abducens lies in the

Answer 29

pons

Question 30

Interruption of the abducens nerve restricts what motion of the eye?

Answer 30

lateral

Question 31

Which cranial nerve is a special sensory for smell and exits through the cribriform plate?

Answer 31

olfactory nerve

Question 32

Which nerve originates from the nerve cell bodies in the retina of the eye and the axons of the ganglion cells of the retina?

Answer 32

optic nerve

Question 33

Of these three cranial nerves, which one is the motor nerve?

Answer 33

CN III

Question 34

Which cranial nerve origin is known as “Edinger Westphal visceral motor?

Answer 34

Oculomotor nerve (CN III)

Question 35

Which of these three cranial nerves, exits through the skull through the superior orbital fissure?

Answer 35

CN III

Question 36

The frontal nerve is a continuation of the ophthalmic nerve?

Answer 36

TRUE

Question 37

Which nerve is responsible for causing anosmia?

Answer 37

olfactory nerve

Question 38

–––––––––––– terminates in the piriform cortex of the anterior part of the temporal bone of the cerebrum

Answer 38

Lateral olfactory stria

Question 39

Trauma to this nerve will cause pupillary constriction?

Answer 39

CN II

Question 40

Which nerve fiber synapses with the mitral nerve cells of the olfactory bulb?

Answer 40

CN I