Basic anatomy and human skeletal muscles explained.
The foot is a very complex body part with 26 bones and so many more joints and even more ligaments. Plus tendons, muscles and other soft tissues!
The hip joint is a ball and socket joint, formed by the head of the Femur (thigh bone) and the acetabulum of the pelvis. The dome-shaped head of the femur forms the ball, which fits snugly into the concave socket of the acetabulum.
The shoulder is a complex joint with high mobility but a lack of stability. The anatomy of the joint is explained here:
The knee joint is the largest joint in the body, consisting of 4 bones and an extensive network of ligaments and muscles.
The elbow is a relatively simple hinge joint which only allows flexion and extension. The elbow joint occurs at the junction the humerus or upper arm bone, the ulna which is the larger of the two forearm bones and the radius bone.
The main human muscles are explained with origins, insertions, actions, exercises, stretching and more. Shoulder girdle, shoulder joint, arm and elbow muscles, knee joint, foot and ankle, hip and pelvic muscles are covered.