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 animals such as the …
Deltoid Muscles: What Are They, Anatomy, Location & Function
Sep 24, 2021 · 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 move your arms in different …
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. It is comprised of three distinct portions (anterior or …
Deltoid: What Is It, Location, Function, and More | Osmosis
Sep 23, 2025 · The deltoid muscle is one of the main abductors of the shoulder, meaning it helps lift the arm when reaching for objects or brushing the hair. It’s also activated when carrying heavy weights, …
Deltoid Muscle: What to Know - WebMD
Dec 12, 2024 · What Are the Deltoid Muscles? What is the deltoid muscle? Deltoids are also known as shoulder muscles. They’re a very important muscle group that’s located where your upper arm meets …
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 resembles in shape. …
Deltoideus muscle | Shoulder, Movement, & Function | Britannica
The deltoid, as it is commonly known, originates on the outer front third of the clavicle (collarbone) and the lower margin of the spine of the scapula (shoulder blade). Its fibres unite to form a thick tendon …
Anatomy, Shoulder and Upper Limb, Deltoid Muscle
Jan 30, 2024 · The deltoid originates from the scapular spine, superior acromial surface, and lateral third of the clavicle. Thus, this muscle's proximal attachment is U-shaped, mirroring the trapezius muscle's …
The Deltoid Muscle: Anatomy and 3D Illustrations - Innerbody
6 days ago · The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder. It is named after the Greek letter delta, which is shaped like an …
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.