Deltoid Muscles Anatomy at Anatomy

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Deltoid Muscles Anatomy. It is also known as the 'common shoulder muscle', particularly in other animals such as the domestic cat. Where is the deltoid muscle?

Deltoid Muscles Isolated In Lateral Photograph by Hank Grebe
Deltoid Muscles Isolated In Lateral Photograph by Hank Grebe from pixels.com

The deltoid muscle (also known as deltoideus muscle) is the largest of the shoulder muscles. It is made up of three distinct parts (or heads), namely the anterior, lateral (or middle), and posterior heads. All the seven segmentations of the deltoid muscle play different roles in abduction and adduction of the arm and keeping the shoulder joint stablized during these movements.

Deltoid Muscles Isolated In Lateral Photograph by Hank Grebe

Anatomy of the deltoid muscle. The deltoid is a thick, triangular shoulder muscle. The deltoid is attached by tendons to the skeleton at the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). It gets its name because of its similar shape to the greek letter ‘delta’ (δ).