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 muscle - Wikipedia
The human deltoid is of similar proportionate size as the muscles of the rotator cuff in apes like the orangutan, which engage in brachiation and possess the muscle mass needed to support the body …
Deltoid Muscles: What Are They, Anatomy, Location & Function
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 muscles help you …
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 …
The Deltoid Muscle: Anatomy and 3D Illustrations - Innerbody
Dec 22, 2025 · Discover the anatomy and key functions of the deltoid muscle with Innerbody's interactive 3D model.
Anatomy, Shoulder and Upper Limb, Deltoid Muscle
Jan 30, 2024 · The 4 rotator cuff muscles—the supraspinatus, infraspinatus, teres minor, and subscapularis—work with the deltoid to stabilize the shoulder and move the upper limb.
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 clavicle …
Deltoid muscle - e-Anatomy - IMAIOS
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 synergistically …
Deltoid Muscle Anatomy Breakdown | Origin, Insertion, Function ...
Jul 10, 2025 · Learn the Deltoid muscle’s origin, insertion, function, innervation, and clinical relevance in this detailed anatomy video with insights from a Doctor of Physical Therapy.