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 letter ‘delta’ (Δ). The muscle has a wide origin spanning the clavicle, acromion and spine of scapula.

The deltoid muscle 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 domestic cat. Anatomically, the deltoid muscle is made up of three distinct sets of muscle fibers, namely the anterior or clavicular part (pars clavicularis)

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 clavicular, middle or acromial, and posterior or spinal)

Oct 9, 2022 · The deltoid is an intrinsic muscle of the shoulder region. It is shaped like an inverted triangle and can be divided into three parts (anterior, middle and posterior). Attachments: Originates from the lateral third of the clavicle, the acromion and the spine of the scapula. It attaches to the deltoid tuberosity on the lateral aspect of the humerus.

Jul 19, 2023 · The deltoid is a muscle responsible for lifting the arm and helping the shoulder to move. Strains and injuries from overuse can lead to pain. In this article, learn about the types of deltoid...

Sep 24, 2021 · 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 move your arms in different directions. They also protect and stabilize your shoulder joint. Cleveland Clinic is a non-profit academic medical center.

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. The deltoids give our shoulder its rounded shape and are responsible for most major arm movements.

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 (collarbone), spine of the scapula (shoulder blade), and humerus (upper arm bone).

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. Conditions affecting this muscle are often due to trauma and chronic wear and tear.

Oct 18, 2016 · Based on the origins and insertions, the deltoid muscle can be divided into seven segments (c). The anterior segments (A1, A2, and A3) converge and attach to the anterior insertion. The middle segment (M1) attaches to the middle insertion. The posterior segments (P1, P2, and P3) converge and attach to the posterior insertion.