The deltoid is a large, triangular shaped muscle that covers the top of each shoulder joint. The deltoids are comprised of three parts: These fibers cover the upper arms to provide the round shape ...

Your deltoid is a large, triangle-shaped muscle that supports the movement and stability of the shoulder joint. This muscle ...

Grab a towel with both hands and your arms extended. Try to bring it over your head and behind your body, while keeping your ...

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 ...

Allows a great range of movement in all directions. Many muscles are used to move the shoulder joint, including the deltoid, trapezius and latissimus dorsi.