Indentation edge of the shoulder girdle.

• A. Scapular notch
• B. Coracoid process
• C. Perichondrium
• D. Epiphyseal plate

Answer: (A)

The indentation edge of the shoulder girdle is the scapular notch. It sits along the superior border of the scapula, just medial to the base of the coracoid process, forming an indentation in the bone. When the superior transverse scapular ligament bridges this notch, it creates the suprascapular foramen. The name itself reflects that it’s a notch—an indentation—in the edge of the shoulder girdle.

The coracoid process is a palpable projection from the scapula, not an indentation. Perichondrium is the connective tissue surrounding cartilage, not a feature of the shoulder girdle’s edges. The epiphyseal plate is the growth plate at the ends of long bones, not part of the shoulder girdle anatomy.