Facial expression is regulated by the
A. facial nerve.
B. vagus nerve.
C. abducens nerve.
D. trigeminal nerve.
E. accessory nerve.
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Question 2) Which of the following cranial nerves innervates only one muscle of the eyeball?
A. optic nerve
B. facial nerve
C. trochlear nerve
D. trigeminal nerve
E. oculomotor nerve
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Question 3) Dentists anesthetize a portion of the _____ nerve to stop pain impulses from the teeth.
A. facial
B. trigeminal
C. hypoglossal
D. glossopharyngeal
E. abducens
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Question 4) A kiss on the cheek would be perceived by impulses from the
A. trochlear nerve.
B. abducens nerve.
C. trigeminal nerve.
D. vestibulocochlear nerve.
E. facial nerve.
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Question 5) The abducens nerves
A. transmit pain impulses from the teeth.
B. are involved in eye movement.
C. dilate blood vessels in the skin.
D. slow the heart rate.
E. control size of the pupil.
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Question 6) Ptosis (drooping of the upper eyelid) of the left eye would be caused by damage to the
A. facial nerve.
B. abducens nerve.
C. trochlear nerve.
D. oculomotor nerve.
E. optic nerve.
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Question 7) Which of the following would help to determine if the oculomotor nerve was damaged?
A. have the patient distinguish between green and red colors
B. determine if the patient can see anything
C. have the patient look superiorly and inferiorly
D. have the patient cry
E. determine if the patient still has night vision
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Question 8) The oculomotor nerve
A. innervates all the muscles that move the eyeball.
B. adjusts pupil size to the level of lighting.
C. transmits action potentials from the retina.
D. controls the organ of balance.
E. innervates two of the six muscles that move the eyeball.
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Question 9) Which of the following cranial nerves is exclusively sensory?
A. vestibulocochlear (VIII)
B. hypoglossal (XII)
C. trochlear (IV)
D. facial (VI)
E. trigeminal (V)
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Question 10) Which of the following arteries supply blood to the brain?
A. external carotid arteries
B. internal carotid arteries
C. vertebral arteries
D. Both the internal carotid arteries and the vertebral arteries.
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