Femur

The femur, commonly known as the thigh bone, is the longest and strongest bone in the human body. It extends from the hip socket down to the knee, supporting weight and enabling leg movement. The femur has a rounded head that fits into the hip joint, a shaft that is slightly bowed, and structures at both ends for muscle attachments and joint articulation. Its strength and structure are essential for activities like walking, running, and jumping. Proper care and protection of the femur are important, as fractures can significantly impact mobility and require medical attention.