The femur is an example of which bone category?

The femur is an example of which bone category?

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

Answer: (C)

Bone shape is classified by length relative to width. Long bones have a long, cylindrical shaft with two ends and act as levers for movement. The femur fits this pattern perfectly: a long thigh bone with a central shaft (diaphysis) and expanded ends that form the knee and hip joints, and it serves as a major weight-bearing lever. Short bones are cube-like, flat bones are thin and curved, and irregular bones have complex shapes, like vertebrae. So the femur is a long bone.

Bone shape is classified by length relative to width. Long bones have a long, cylindrical shaft with two ends and act as levers for movement. The femur fits this pattern perfectly: a long thigh bone with a central shaft (diaphysis) and expanded ends that form the knee and hip joints, and it serves as a major weight-bearing lever. Short bones are cube-like, flat bones are thin and curved, and irregular bones have complex shapes, like vertebrae. So the femur is a long bone.