Which cranial nerve is responsible for muscles that move the eye and lids?

Oculomotor.

Vestibulocochlear.

Facial.

Trigeminal.

Answer and Explanation

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.

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Correct Answer is C

Explanation

Choice A rationale

Aspiration of synovial fluid for serologic testing is a procedure known as arthrocentesis, which involves extracting joint fluid for analysis. While useful for diagnosing conditions like infections or arthritis, it is not the same as arthrography, which involves imaging.

Choice B rationale

Injection of corticosteroids into the client's knee joint to facilitate ROM is a therapeutic procedure to reduce inflammation and improve movement in conditions like arthritis, but it is not part of an arthrography procedure.

Choice C rationale

Injection of a contrast agent into the knee joint prior to ROM exercises is a key part of arthrography. The contrast agent helps to enhance the imaging of the joint structures during movement, allowing for a detailed assessment of the joint.

Choice D rationale

Replacement of the client's synovial fluid with a synthetic substitute is not related to arthrography. This description aligns more with viscosupplementation, a treatment for osteoarthritis.

A. Scoliosis. B. Muscular dystrophy. C. Kyphosis. D. Lordosis.

Correct Answer is A

Explanation

Choice A rationale

Scoliosis is identified by a lateral curve of the spine, resulting in uneven shoulders and prominent scapula when bending forward. These physical findings are characteristic of scoliosis, aiding its diagnosis.

Choice B rationale

Muscular dystrophy causes symmetrical muscle weakening, not the asymmetry of scoliosis. It does not present with the specific spinal curvature described.

Choice C rationale

Kyphosis involves a rounded upper back, not a lateral spinal curve. It leads to a hunched posture rather than the shoulder and scapula asymmetry seen in scoliosis.

Choice D rationale

Lordosis is characterized by an exaggerated inward curve of the lower back, not affecting shoulder and scapula symmetry as in scoliosis. It primarily involves the lumbar spine, not causing the described physical findings.

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Which cranial nerve is responsible for muscles that move the eye and lids?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client has been experiencing an unexplained decline in knee function and has consequently been scheduled for arthrography. The nurse should teach the client about what process?

Correct Answer is C

Explanation

A nurse's assessment of a teenage client reveals that their shoulders are not level and that they have one prominent scapula is accentuated by bending forward. The nurse should expect to read about what health problem in the client's electronic health record?

Correct Answer is A

Explanation

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