The top of the humerus is part of the shoulder joint, and the bottom of the humerus is part of the elbow joint. Muscles move the humerus. The humerus is your upper arm bone. It is the only bone in ...

Deltoid Abduction of the shoulder (moving the arm outwards and away from the body) Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to ...

Understanding Arm Anatomy Before diving into specific ... and arm swings to loosen up the shoulder, bicep, and tricep muscles ...

Shoulders are, in many ways, a marvel. One shoulder has four separate joints, packed with muscles, that allow us to move our ...

Each role is vital to proper arm function and can only occur when the anatomy around the shoulder is uncompromised. The presence of bony and soft tissue injury as well as muscle weakness and ...