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 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.
Deltoid muscle: Origin, insertion, innervation, function | Kenhub
Oct 30, 2023 · The deltoid is a large shoulder muscle and its principal abductor. Learn about its anatomy, innervation, function and more at Kenhub!
Deltoid Muscles: What Are They, Anatomy, Location & Function
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 directions.
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 - 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 …
Anatomy, Shoulder and Upper Limb, Deltoid Muscle
Jan 30, 2024 · This muscle forms the shoulder's rounded contour, being thick and spread out anteroposteriorly (see Image. Surface Anatomy of the Right Upper Extremity, Posterior Aspect). The …
Deltoid Muscle: Anatomy, Function, and Treatment
Dec 14, 2023 · The deltoid muscle is the main muscle of the shoulder. It helps to lift the arm up and rotate the shoulder.
The Deltoid Muscle: Anatomy and 3D Illustrations - Innerbody
1 day 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.