The deltoid muscle (or musculus deltoideus) is the muscle [1] forming the rounded contour of the human shoulder. It is also known as the 'common shoulder muscle', particularly in other …

Apr 23, 2024 · The deltoid is a large, thick triangular skeletal muscle in the shoulder joint, connecting the arm to the body trunk. Its name derives from ‘delta’ (Δ), the Greek letter that it …

Sep 24, 2021 · Overview What are deltoid muscles? Your deltoid muscles are in your shoulder, which is the ball-and-socket joint that connects your arm to the trunk of your body. Deltoid …

Sep 2, 2025 · The deltoid is a large muscle responsible for lifting the arm and giving the shoulder its range of motion. Pain in this area may be due to issues like overuse or injury.

The Deltoid muscle is a large triangular-shaped muscle that lies over the glenohumeral joint and which gives the shoulder its rounded contour. Acts mainly as an abductor of the shoulder and …

Oct 30, 2023 · Origin, insertion, innervation and functions of the deltoid muscle. The deltoid is a thick, triangular shoulder muscle. It gets its name because of its similar shape to the Greek …

Dec 12, 2024 · Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region …

Jan 30, 2024 · The deltoid muscle is a key player in shoulder stability and motion. Rotator cuff injuries may force the deltoid to compensate for the resulting shoulder weakness.

The deltoid muscle is a large, triangular, and thick muscle that envelops the shoulder joint from the front, side, and back. It has three distinct parts—anterior, middle, and posterior—that work …

Dec 14, 2023 · The deltoid muscle is the main muscle of the shoulder. A triangle-shaped muscle, it helps move your upper arm and stabilizes the shoulder joint. The deltoid connects to the …