What is the longest bone in the body?

The femur, also known as the thigh bone, is the longest and strongest bone in the human body.

• Location: It extends from the hip to the knee.
• Structure: It consists of a head which articulates with the acetabulum of the pelvis, a neck, and a long shaft (diaphysis). At its distal end, it has two condyles that articulate with the tibia to form the knee joint.
• Function: The femur plays a critical role in weight-bearing, standing, walking, and running. It also provides attachment points for many powerful muscles of the thigh and hip.
• Fractures: Femoral fractures can be severe and often require surgical intervention due to the bone's size and the forces it endures.