Which bones compose the pectoral girdle?

• A. Scapula and sternum
• B. Clavicle and humerus
• C. Humerus and scapula
• D. Clavicle and scapula

Answer: (D)

Verified step by step guidance

1. Understand the function of the pectoral girdle: It serves as the attachment point for the upper limbs and provides support and mobility.
2. Identify the bones involved in the pectoral girdle: The pectoral girdle is composed of two main bones.
3. Recognize the clavicle: The clavicle, or collarbone, is a long bone that connects the arm to the trunk of the body, providing structural support.
4. Recognize the scapula: The scapula, or shoulder blade, is a flat bone that provides attachment points for muscles and articulates with the clavicle.
5. Conclude that the pectoral girdle is composed of the clavicle and scapula, which together facilitate the movement and support of the upper limbs.