What are the bones that form the shoulder girdle?

• A. One scapula and one clavicle
• B. Two scapulae and two clavicles
• C. Three scapulae and two clavicles
• D. One scapula and two clavicles

Answer: (B)

The shoulder girdle, also known as the pectoral girdle, is composed of two key components on each side of the body: the scapula and the clavicle. For the complete girdle, there are two scapulae (one on each side) and two clavicles (also one on each side). This structure connects the upper limbs to the torso and provides support and stability for arm movements.

Each scapula, or shoulder blade, and clavicle, or collarbone, work together to allow for a wide range of motion in the shoulders while also providing structural support. Thus, stating that there are two of each bone accurately represents the anatomy of the shoulder girdle, making this the correct choice. This knowledge is fundamental in understanding human anatomy, especially in contexts where shoulder injuries or conditions are discussed.