Which muscle inserts on the superior medial border of the scapula?

Which muscle inserts on the superior medial border of the scapula?

• A. Levator scapulae
• B. Latissimus dorsi
• C. Rhomboid major
• D. Serratus anterior

Answer: (A)

The muscle that inserts on the superior medial border of the scapula is the levator scapulae. It originates from the transverse processes of the upper cervical vertebrae and attaches to the superior part of the medial border of the scapula, near the superior angle. This placement explains its main action of elevating the scapula (and contributing to downward rotation). The other muscles attach elsewhere: serratus anterior to the anterior (costal) side of the medial border, and the rhomboid major and minor attach along the medial border more medially and inferiorly, not at the very superior part; latissimus dorsi attaches to the humerus, not the scapula.

The muscle that inserts on the superior medial border of the scapula is the levator scapulae. It originates from the transverse processes of the upper cervical vertebrae and attaches to the superior part of the medial border of the scapula, near the superior angle. This placement explains its main action of elevating the scapula (and contributing to downward rotation). The other muscles attach elsewhere: serratus anterior to the anterior (costal) side of the medial border, and the rhomboid major and minor attach along the medial border more medially and inferiorly, not at the very superior part; latissimus dorsi attaches to the humerus, not the scapula.