Shoulder
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The human shoulder is made up of three bones: the clavicle, the scapula, and the humerus as well as associated muscles, ligaments and tendons.
Human shoulder
The axillary artery supplies blood to the arm and is one of the major sources of blood for the shoulder region.
Anatomical studies of the shoulder by Leonardo da Vinci (ca.1510)
CR. shoulay film.
Deltoid muscle
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The deltoid muscle is the muscle forming the rounded contour of the human shoulder. It is also known as the 'common shoulder muscle', particularly in other animals such as the domestic cat. Anatomical
Shoulder
…of the humerus. Together, these keep the humeral head in the glenoid cavity, preventing upward migration of the humeral head caused by the pull of the deltoid muscle at the beginning of arm elevation. The infraspinatus and the teres minor, along with the anterior fibers of the deltoid muscle, are responsible for…
Origin and insertion of deltoid muscle
Deltoid muscle with superior limb in abduction