Legs

Legs are the lower extremities of the human body. They are used for standing, walking, and running. The legs are also used for other purposes such as balance, posture, and lifting objects. The legs are made up of bones, muscles, and joints.

The bones in the leg include the femur, tibia, and fibula. The muscles in the leg include the quadriceps, hamstrings, and calves. The joints in the leg include the hip, knee, and ankle.

The quadriceps are the muscles on the front of the thigh. They are used for straightening the leg. The hamstrings are the muscles on the back of the thigh. They are used for bending the leg.

The calves are the muscles on the back of the lower leg. They are used for pointing the foot.

The hip is a ball-and-socket joint. The ball is at the top of the thigh bone. The socket is in the pelvis. The knee is a hinge joint. The ankle is a hinge joint.

The bones, muscles, and joints all work together to allow for the movement of the leg.