GROSS ANATOMY

Detailed explanation-1: -The deltoid looks like an upside-down triangle. Tendons connect each of the three side to bones. The base of the deltoids connects to the upper part of your scapula (shoulder blade) and the side of your clavicle (collarbone).

Detailed explanation-2: -Description. The Deltoid muscle is a large triangular-shaped muscle that lies over the glenohumeral joint and which gives the shoulder its rounded contour. Acts mainly as an abductor of the shoulder and stabiliser of the humeral head.

Detailed explanation-3: -The deltoid is a triangular muscle. Its base (or origin) attaches to the spine of the scapula and lateral third of the clavicle. This U-shaped origin point mirrors the insertion point for the trapezius muscle.

Detailed explanation-4: -The deltoid muscle got its name because of its triangular shape and its three distinct sections of muscle fibers. Weight lifters and body builders sometimes call these muscles “delts” for short. Deltoid comes from the Greek deltoeides, “triangular, ” or “shaped like the Greek letter delta."