Deltoid muscle - Wikipedia
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 …
Deltoid Muscle: Parts, Origin, Insertion, Action, & Innervation
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 …
Deltoid pain: Causes, exercises, and relief - Medical News Today
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.
Deltoid Muscles: What Are They, Anatomy, Location & Function
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 muscles help you …
Deltoid muscle: Origin, insertion, innervation, function | Kenhub
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 …
Deltoid - Physiopedia
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 …
Deltoid: What Is It, Location, Function, and More | Osmosis
Sep 23, 2025 · What is the deltoid muscle? The deltoid muscle is a large, triangular-shaped muscle that lies superficially to other muscles of the shoulder and is responsible for forming …
Deltoid Muscle: Anatomy, Function, and Treatment
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 …
All About Shoulder Muscles: Anatomy, Function, and Injury - WebMD
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 …
Anatomy, Shoulder and Upper Limb, Deltoid Muscle
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.