The hydropathic encyclopedia : a system of hydropathy and hygiene in eight parts ..designed as a guide to families and students, and a text-book for physicians . rus. 5. Teres major; arises from the lowerthird of the inferior border of the scapula; inserted into the posteriorbicipital ridge. G. Deltoid, a large triangular muscle forming the con-vexity of the shoulder ; arising from the outer third of the clavicle, thoncromion process, and from the whole length of the scapula; its fibresconverge to the middle of the outer side of the humerus, where theyare inserted into a rough elevation. Uses.
The hydropathic encyclopedia : a system of hydropathy and hygiene in eight parts ..designed as a guide to families and students, and a text-book for physicians . rus. 5. Teres major; arises from the lowerthird of the inferior border of the scapula; inserted into the posteriorbicipital ridge. G. Deltoid, a large triangular muscle forming the con-vexity of the shoulder ; arising from the outer third of the clavicle, thoncromion process, and from the whole length of the scapula; its fibresconverge to the middle of the outer side of the humerus, where theyare inserted into a rough elevation. Uses.—The subscapularis rotates the head of the humerus inward ;when the arm is raised it draws the humerus downward. It is apowerful defence to the shoulder joint. The supra-spinatus raises thenrin feebly from the side ; the infra-spinatus and teres minor rotate thehead of the humerus outward; the teres minor assists its rotation in-ward, carrying it also toward the side, and somewhat backward. Themost important use of the supra-spinatus, infra-spinatus, and teres minoris to protect the joint against ^placement, for which purpose their 11J ANATOMY. Fig. tendons, with that of the subscapulars, are inimmediate contact, forming a part of its liga-mentous capsule. They are, consequently,generally ruptured in luxations of the shouldeiJ joint. Fig. 53 exhibits the muscles of the anterior aspect of theupper arm. I. Coracoid process of the scapula. ligament passing outward to the scapularend of the clavicle. 3. Coraco-acromiHl ligament, passingoutward to the acromion. 4. Subscapularis. 5. Teresmajor; through the triangular space above the dorsalisscapulas vessels pass. C. Coracobrachialis. 7. Upper end of the radius. 9. Brachialis anticus; a por-tion of this muscle is seen on the outer side of the tendonof the biceps. 10. Internal head of the biceps. Humeral Region.— Four muscles:first three are anterior, the last - brachialis; the1.
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