Which two bones form the lateral aspects and floor of the skull?

Which two bones form the lateral aspects and floor of the skull?

• A. Temporal bones
• B. Parietal bones
• C. Frontal bone
• D. Occipital bone

Answer: (A)

The bones that form the lateral aspects and the floor of the skull are the temporal bones. On each side, the temporal bone sits at the temple region and extends downward to become part of the cranial base, with the petrous portion contributing to the floor. The parietal bones mainly cover the lateral and superior aspects but not the floor; the frontal bone forms the anterior part and roof, while the occipital bone forms the posterior base. So, the temporal bones on both sides fit the description of forming the lateral aspects and the floor.

The bones that form the lateral aspects and the floor of the skull are the temporal bones. On each side, the temporal bone sits at the temple region and extends downward to become part of the cranial base, with the petrous portion contributing to the floor. The parietal bones mainly cover the lateral and superior aspects but not the floor; the frontal bone forms the anterior part and roof, while the occipital bone forms the posterior base. So, the temporal bones on both sides fit the description of forming the lateral aspects and the floor.