Unit 4 Practice Exam

Question 1

After a minor head injury, your patient reports difficulty with chewing food. Which of the following cranial nerves is most likely to be affected?

Answer 1

trigeminal (CN V)

Question 2

If damage occurs to the posterior cerebral artery, which of the following deficits will occur?

a. balance deficits
b. bilateral motor deficits
c. bilateral pain and temperature sensory deficits
d. visual deficits

Answer 2

visual deficits

Question 3

a posterior cerebral artery (PCA) aneurysm could present clinically with what pathology

Answer 3

drooping eyelids (ptosis)

Question 4

a 15-year-old patient experienced a blow to the anterolateral aspect of his head and was diagnosed with a fracture to the pterion. which vessel is commonly associated with this fracture?

Answer 4

middle meningeal artery

Question 5

the superior sagittal sinus is in the superior border of what dural partition?

Answer 5

falx cerebri

Question 6

which of the following muscles pulls the mandibular condyle and the articular disc when opening the jaw?

a. medial pterygoid
b. lateral pterygoid
c. masseter
d. mylohyoid

Answer 6

lateral pterygoid

Question 7

a physical therapist tests the pt’s cranial nerves. using a pen light to shine a bright light into the pt’s eyes, the physical therapist noticed that the light causes the pupil to constrict. if the light is perceived by the optic nerve, which CN is causing the pupil to constrict?

Answer 7

oculomotor nerve (CN III)

Question 8

which of the following dural venous sinuses flow into the confluence of sinuses?

Answer 8

superior sagittal sinus
straight sinus
occipital sinus

Question 9

patient has arteriovenous malformation affected right occipital lobe, which function will he lose?

Answer 9

vision

Question 10

thyrohyoid muscle is innervated by which nerve/plexus

Answer 10

C1 ventral ramus

Question 11

pt demonstrates while right facial drop with flat forehead but taste of the tongue is normal, where is the most possible location that CN VII is injured

Answer 11

stylomastoid foramen

Question 12

patient complains of numbness/pain around the right mandibular angle, which of the following nerves is responsible for the sensation of the area

Answer 12

greater auricular nerve

Question 13

pt complains of numbness/tingling around left clavicle to upper shoulder after car accident. what nerve could be impaired?

Answer 13

supraclavicular nerve

Question 14

what muscles are involved in protraction of the mandible

Answer 14

masseter, medial pterygoid, lateral pterygoid

Question 15

what muscles are involved in retraction of the mandible

Answer 15

temporalis

Question 16

which cranial nerves are involved in the gag reflex

Answer 16

afferent: CN IX
efferent: CN X

Question 17

pt has maxilla fracture with nerves in right pterygopalatine fossa impaired. what signs/symptoms will most likely be observed?

Answer 17

dry eye

Question 18

describe trochlear nerve palsy

Answer 18

one eye looks up

Question 19

parotid gland duct peirce what muscle

Answer 19

buccinator

Question 20

pt fell backward with right mastoid fractured. pt still has difficulty to open mouth when in supine. what muscle was most likely affected

Answer 20

digastric

Question 21

pt has undergone surgery for thoracic outlet syndrome to dissect anterior scalene muscle. the nerve courses superiorly to this muscle is severed accidentally. what symptoms will the pt experience

Answer 21

difficulty breathing

Question 22

pt has C2 dorsal rami severed during car accident, what of the following signs/symptoms will the pt experience

Answer 22

numbness/pain around posterior neck and cranium

Question 23

pt has chronic neck pain with mri showed C2 disc herniation bilaterally. what muscles will be affected

Answer 23

sternohyoid

Question 24

what neck muscles are innervated by CN VII/facial nerve

Answer 24

digastric posterior belly