Which bone is highlighted in the diagram as part of the axial skeleton?

• A. Skull
• B. Femur
• C. Humerus
• D. Clavicle

Answer: (A)

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, ribs, and sternum.
2. Step 2: Review the highlighted bone in the diagram. Identify its location and characteristics to determine if it belongs to the axial skeleton.
3. Step 3: Compare the options provided. The skull is part of the axial skeleton, while the femur, humerus, and clavicle are part of the appendicular skeleton.
4. Step 4: Recall the function of the axial skeleton. It primarily provides support and protection for the brain, spinal cord, and thoracic organs, which aligns with the role of the skull.
5. Step 5: Confirm that the highlighted bone matches the description and location of the skull, which is part of the axial skeleton.