Cranial Nerves Flashcards
What is the primary purpose of cranial nerve assessment?
To evaluate the function of the cranial nerves and identify any neurological deficits.
How many cranial nerves are there in total?
There are 12 cranial nerves.
True or False: The olfactory nerve is responsible for vision.
False.
Fill in the blank: The __________ nerve is responsible for hearing and balance.
vestibulocochlear
Which cranial nerve is responsible for facial sensation?
Trigeminal nerve (CN V).
What does the term ‘anosmia’ refer to?
Loss of the sense of smell.
Multiple Choice: Which cranial nerve is primarily responsible for eye movement? A) CN II B) CN III C) CN IV D) CN VI
B) CN III
What is the function of the facial nerve (CN VII)?
It controls the muscles of facial expression and provides taste sensations from the anterior two-thirds of the tongue.
True or False: The vagus nerve is involved in parasympathetic control of the heart and digestive tract.
True.
Name the cranial nerve responsible for the sense of taste from the posterior one-third of the tongue.
Glossopharyngeal nerve (CN IX).
What type of testing is commonly used to assess the optic nerve?
Visual acuity testing and visual field testing.
Multiple Choice: Which cranial nerve is responsible for controlling the muscles of mastication? A) CN V B) CN VII C) CN IX D) CN X
A) CN V
Fill in the blank: The __________ nerve is responsible for the movement of the tongue.
hypoglossal
What is the primary role of the trochlear nerve (CN IV)?
To innervate the superior oblique muscle, which is responsible for downward and lateral eye movement.
True or False: The accessory nerve (CN XI) is responsible for swallowing.
False.
What cranial nerve is affected in Bell’s palsy?
Facial nerve (CN VII).
Multiple Choice: Which cranial nerve has both sensory and motor functions? A) CN I B) CN II C) CN V D) CN VIII
C) CN V
What is the clinical significance of the pupillary light reflex?
It assesses the integrity of the optic nerve (CN II) and the oculomotor nerve (CN III).
Fill in the blank: The __________ nerve is responsible for the sensation of taste from the anterior two-thirds of the tongue.
facial
What assessment can be performed to evaluate the vestibulocochlear nerve?
Rinne and Weber tests for hearing.
True or False: The trigeminal nerve has three branches.
True.
What does ‘diplopia’ mean?
Double vision.
Multiple Choice: Which cranial nerve is responsible for the movement of the sternocleidomastoid and trapezius muscles? A) CN VII B) CN IX C) CN XI D) CN XII
C) CN XI
What is the function of the oculomotor nerve (CN III)?
It controls most of the eye’s movements, the constriction of the pupil, and maintains an open eyelid.
