Origin: lateral third of clavicle, acromion, and spine of scapula. Action: abduction, flexion and extension, medial and lateral rotation of arm * Deltoid Infraspinatus Supraspinatus Subscapularis

The correct answer is - Deltoid

Explanation:

Deltoid muscles are thick triangular muscles that help in raising and rotating arm covers shoulder joints. It originates lateral third of the clavicle, inferiorly along the spine of the scapula to the acromion.

Deltoid muscles provide actions that include flexion and medial rotation, abduction, and extension, and lateral rotation at the shoulder joint. Deltoid means triangle or that has three sides as it has three originating sides.

answer: i don't know

explanation:

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.