Levator scapulae nerve innervation is which nerve?

Levator scapulae nerve innervation is which nerve?

• A. Dorsal scapular nerve
• B. Dorsal primary rami
• C. Accessory nerve
• D. Long thoracic nerve

Answer: (A)

Levator scapulae is innervated mainly by the dorsal scapular nerve, which originates from the C5 root. This nerve travels to the muscle and provides motor fibers that help elevate and stabilize the scapula, often with small contributions from C3–C4 in some individuals. The other nerves listed don’t supply this muscle: the dorsal primary rami serve intrinsic back muscles along the spine, the accessory nerve supplies trapezius and sternocleidomastoid, and the long thoracic nerve innervates serratus anterior.

Levator scapulae is innervated mainly by the dorsal scapular nerve, which originates from the C5 root. This nerve travels to the muscle and provides motor fibers that help elevate and stabilize the scapula, often with small contributions from C3–C4 in some individuals. The other nerves listed don’t supply this muscle: the dorsal primary rami serve intrinsic back muscles along the spine, the accessory nerve supplies trapezius and sternocleidomastoid, and the long thoracic nerve innervates serratus anterior.