College of Massage Therapists of British Columbia (CMTBC) Practice Exam

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Which muscles are supplied by the dorsal scapular nerve?

  1. Rhomboids and pectoralis major

  2. Levator scapulae and serratus anterior

  3. Rhomboids and levator scapulae

  4. Serratus anterior and trapezius

The correct answer is: Rhomboids and levator scapulae

The dorsal scapular nerve primarily innervates the rhomboid muscles and the levator scapulae. The rhomboids, consisting of the rhomboid major and rhomboid minor, are responsible for retracting and elevating the scapula, playing a crucial role in shoulder movement and stability. The levator scapulae assists in elevating the scapula and helps in the lateral flexion and rotation of the neck. This innervation is significant as it highlights the specific muscular functions facilitated by the dorsal scapular nerve and reflects the overall anatomical relationships and functional aspects of the shoulder girdle. Understanding the roles of these muscles can also aid in identifying potential areas of concern in shoulder pathology or in developing treatment plans for conditions affecting the scapula and surrounding structures.

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