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30 Οκτ 2023 · 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. It passes inferiorly surrounding the glenohumeral joint on all sides and inserts onto the humerus.
29 Οκτ 2023 · The upper arm is located between the shoulder joint and elbow joint. It contains four muscles - three in the anterior compartment (biceps brachii, brachialis, coracobrachialis), and one in the posterior compartment (triceps brachii).
11 Οκτ 2024 · The deltoid is attached by tendons to the skeleton at the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). The deltoid is widest at the top of the shoulder and narrows to its apex as it travels down the arm.
14 Δεκ 2023 · Each deltoid muscle is located where the ball-and-socket joint of your shoulder connects your humerus (upper arm bone) to your trunk. The main functions of the deltoid muscles are to stabilize the shoulder joint and move the humerus at or through the shoulder.
30 Ιαν 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. These muscles initiate abduction from 0° to 15° and stabilize the glenohumeral joint when the deltoid abducts the arm past 15°.
14 Νοε 2022 · The deltoid muscle is thick, triangular shaped muscle which arises from the lateral third of the clavicle, the superior acromion process and the spine of the scapular. It attaches to the deltoid tubercle of the lateral proximal humeral shaft.
The deltoid is a thick triangular-shaped muscle of the shoulder girdle. It arises from two bones – the scapula and the clavicle, and extends to the humerus of the upper arm. According to the origin of its fibers, the deltoid muscle can be divided into three parts - acromial (lateral), spinal (posterior), and clavicular (anterior).
