The knee is the joint where the bones of the lower and upper legs meet. The largest joint in the body, the knee moves like a hinge, allowing you to sit, squat, walk or jump. The knee consists of three bones: femur – the upper leg bone, or thigh bone.

The knee is the joint where the bones of the lower and upper legs meet. The largest joint in the body, the knee moves like a hinge, allowing you to sit, squat, walk or jump. The knee consists of three bones: femur – the upper leg bone, or thigh bone

The knee is the joint where the bones of the lower and upper legs meet. The largest joint in the body, the knee moves like a hinge, allowing you to sit, squat, walk or jump. The knee consists of three bones: femur – the upper leg bone, or thigh bone.

The knee is the joint where the bones of the lower and upper legs meet. The largest joint in the body, the knee moves like a hinge, allowing you to sit, squat, walk or jump. The knee consists of three bones: femur – the upper leg bone, or thigh bone.

The knee is the joint where the bones of the lower and upper legs meet. The largest joint in the body, the knee moves like a hinge, allowing you to sit, squat, walk or jump. The knee consists of three bones: femur – the upper leg bone, or thigh bone.

Your spine is the long column of bones that extend from your neck to your lower back. Your spine starts at the base of your skull (head bone) and ends at your tailbone, a part of your pelvis (the large bony structure between your abdomen and legs).

Your spine is the long column of bones that extend from your neck to your lower back. Your spine starts at the base of your skull (head bone) and ends at your tailbone, a part of your pelvis (the large bony structure between your abdomen and legs).

Your spine is the long column of bones that extend from your neck to your lower back. Your spine starts at the base of your skull (head bone) and ends at your tailbone, a part of your pelvis (the large bony structure between your abdomen and legs).