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DAA Exam 2 Practice

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The dorsal scapular nerve innervates which of the following muscles?
Correct Answer:
The rhomboid muscles (minor and major) and levator scapulae
Explanation:
The dorsal scapular nerve carries motor fibers from the C5 root to muscles that pull the shoulder blade toward the spine and help lift it. It specifically innervates the rhomboid major, rhomboid minor, and levator scapulae. This makes the option describing the rhomboids and levator scapulae the best fit, since those muscles are the true targets of this nerve. The other muscles listed are supplied by different nerves—spinal accessory for the trapezius and sternocleidomastoid, subscapular nerves for subscapularis and teres major, and the suprascapular nerve for supraspinatus and infraspinatus—so they don’t match the dorsal scapular nerve’s distribution.

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