GROSS ANATOMY

Detailed explanation-1: -The dorsal scapular nerve (C5) supplies the levator scapulae and rhomboid muscles; it aids in elevation and adduction of the scapula toward the spinal column. A nerve lesion leads to lateral displacement of the vertebral border of the scapula and to rhomboid atrophy (difficult to detect).

Detailed explanation-2: -Nerve Supply The levator scapulae is innervated by cervical nerve (C3-C4) and dorsal scapular nerve (C5).

Detailed explanation-3: -The dorsal scapular nerve arises from the brachial plexus, usually from the plexus root (anterior (ventral) ramus) of cervical nerve C5.

Detailed explanation-4: -Answer and Explanation: The dorsal scapular nerve innervates the levator scapulae, the rhomboid major, and the rhomboid minor muscles.

Detailed explanation-5: -Origin. The levator scapulae originates from the posterior tubercles of the transverse processes of cervical vertebrae C1-4. At its origin, it attaches via tendinous slips.