Which of the following bones is considered part of the axial skeleton?

• A. Scapula
• B. Sternum
• C. Clavicle
• D. Femur

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the axial skeleton. The axial skeleton consists of bones that form the central axis of the body, including the skull, vertebral column, rib cage, and sternum. It provides support and protection for the brain, spinal cord, and vital organs.
2. Step 2: Review the listed options. The options provided are scapula, sternum, clavicle, and femur. Determine which of these bones belongs to the axial skeleton based on its location and function.
3. Step 3: Eliminate bones that are part of the appendicular skeleton. The scapula, clavicle, and femur are part of the appendicular skeleton, which includes bones of the limbs and girdles that attach them to the axial skeleton.
4. Step 4: Identify the sternum as part of the axial skeleton. The sternum is located in the chest and is part of the rib cage, which protects the heart and lungs. It is a flat bone that connects to the ribs via costal cartilage.
5. Step 5: Confirm the correct answer. Based on the definition and classification of the axial skeleton, the sternum is the correct answer as it is part of the central axis of the body.