Femur
Femur — the thigh bone
Short definition
The long load-bearing thigh bone; anchor for quads, hamstrings, glutes.
Full definition
Femur — the longest bone in the body (≈42–50 % of standing height). Its head fits the acetabulum (hip joint); its distal end forms the knee. Quadriceps (anterior), hamstrings (posterior), adductors (medial) and glutes (superior) anchor to it. Bone mass ≈ 1.5–2 % of body mass (≈0.35–0.45 kg in an adult).
Examples
Femoral head — the proximal end fitting the pelvis.