Which skeletal classification does the scapula belong to?

• A. Cranial bones
• B. Appendicular skeleton
• C. Vertebral column
• D. Pelvic girdle

Answer: (B)

The scapula, commonly known as the shoulder blade, is part of the appendicular skeleton. This classification includes all the bones that are involved in limb movement and facilitate the connection of the upper and lower limbs to the axial skeleton. The appendicular skeleton encompasses the bones of the limbs, including the scapula, clavicle, and those of the arms and legs.

Understanding the skeletal classifications is essential for grasping how the body is organized and how these structures function together to allow for movement and support. The cranial bones involve the skull's protective casing for the brain, while the vertebral column pertains to the spine, which supports the body and protects the spinal cord. The pelvic girdle encompasses the bones that support the lower limbs. Thus, the role of the scapula within the appendicular skeleton is crucial for the mobility of the shoulder and the upper limb.