Which cranial nerve is responsible for muscles that move the eye and lids?
Oculomotor.
Vestibulocochlear.
Facial.
Trigeminal.
The Correct Answer is A
Choice A rationale
The oculomotor nerve (cranial nerve III) is responsible for innervating the muscles that move the eye and lift the eyelid, as well as controlling pupil constriction and lens shape for focusing.
Choice B rationale
The vestibulocochlear nerve (cranial nerve VIII) is involved in hearing and balance, not in the movement of eye muscles or eyelids.
Choice C rationale
The facial nerve (cranial nerve VII) controls muscles of facial expression, taste sensations from the anterior two-thirds of the tongue, and functions in tear and saliva production.
Choice D rationale
The trigeminal nerve (cranial nerve V) is responsible for sensation in the face and motor functions such as biting and chewing, not for eye movements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Mixed muscular dystrophy leads to progressive deterioration in all voluntary muscles, causing increasing disability over time.
Choice B rationale
This statement is incorrect because mixed muscular dystrophy affects more than just the arms and pelvic muscles and leads to significant disability.
Choice C rationale
This is not an appropriate response as it does not provide any information and deflects the client's question.
Choice D rationale
Mixed muscular dystrophy is not considered benign, as it causes significant and progressive muscle deterioration.
Correct Answer is D
Explanation
Choice A rationale
Stupor refers to a state of near-unconsciousness or insensibility, where the patient can be briefly aroused by vigorous or repeated stimuli.
Choice B rationale
Somnolence refers to a state of strong desire for sleep or sleeping for unusually long periods (drowsiness), but it is not as severe as stupor or coma.
Choice C rationale
Normal consciousness means the patient is awake, alert, and responsive to their environment with no neurological deficits.
Choice D rationale
A score of 6 on the Glasgow Coma Scale indicates deep coma, where the patient has minimal to no response to stimuli, indicating severe brain injury.
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