Which bone type includes the bones of the skull?

• A. Flat Bones
• B. Long Bones
• C. Short Bones
• D. Irregular Bones

Answer: (A)

The main idea is bone shape classification. Bones are grouped as flat, long, short, or irregular. The bones that form the skull are flat bones: they are broad, thin plates that protect the brain and give the cranium its smooth, curved contour. Flat bones typically have two outer layers of compact bone with a thin layer of spongy tissue between them, which helps with protection and lightness. While a few skull bones at the base or within the facial skeleton are irregular in shape, the skull as a whole is characterized by flat bones, which is why this option best identifies the bone type that includes the skull bones.