12+ Anatomy Of Arm Deltoid. Deltoid branch of thoracoacromial artery. Each head of the deltoid has slightly different insertion points, allowing for more control and a full range of motion at the shoulder joint.
The deltoid is attached by tendons to the skeleton at the clavicle (collarbone), scapula (shoulder. The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder. The deltoid muscle (also known as deltoideus muscle) is the largest of the shoulder muscles.
The biceps brachii muscle gets its name from its two origins, or immovable ends.
The deltoid is a large and powerful shoulder muscle. The deltoid muscle (see the image below) has three areas of origin: Bones of the upper limb. The deltoid is attached by tendons to the skeleton at the clavicle (collarbone), scapula (shoulder.