Location of Deltoid

Location of Deltoid

The Location of Deltoid - The triangular muscle of the shoulder region that forms the rounded flesh of the outer part of the upper arm, and passes up and over the shoulder joint.

The wide end of the muscle is attached to the scapula (shoulderblade) and the clavicle (collarbone). The muscle fibres meet to form the apex of the triangle, which is attached to the humerus (the upper-arm bone) at a position about halfway down its length.

The central, strongest part of the deltoid muscle raises the arm sideways.The front and back parts of the muscle are used to twist the arm.


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