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The humerus (/ ˈhjuːmərəs /; pl.: humeri) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes (tubercles, sometimes ...
The muscles of internal rotation include: of arm / humerus at shoulder. Anterior part of the deltoid muscle [1] Subscapularis [1] Teres major [1] Latissimus dorsi [1] Pectoralis major [1] of thigh / femur at hip [2] Tensor fasciae latae.
pectineus. gemellus inferior. obturator externus. quadratus femoris. Sartorius. of leg at knee [3] Biceps femoris. of eyeball (motion is also called "extorsion" or excyclotorsion) [4] Inferior rectus muscle.
Anatomical terms of bone. [ edit on Wikidata] The ulna or ulnar bone (pl.: ulnae or ulnas) [ 3 ] is a long bone in the forearm stretching from the elbow to the wrist. It is on the same side of the forearm as the little finger, running parallel to the radius, the forearm's other long bone.
The anatomical neck divides the head of the humerus from the greater and lesser tubercles of the humerus. It gives attachment to the capsular ligament of the shoulder joint except at the upper inferior-medial aspects. It is best marked in the lower half of its circumference; in the upper half it is represented by a narrow groove separating the ...
Shoulder girdle. The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans, it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists of the clavicle, scapula, and coracoid. Some mammalian species (such as the dog and ...
The upper extremity of the radius consists of a somewhat cylindrical head articulating with the ulna and the humerus, a neck, and a radial tuberosity. [1] The body of the radius is self-explanatory, and the lower extremity of the radius is roughly quadrilateral in shape, with articular surfaces for the ulna, scaphoid and lunate bones.
The name funny bone could be from a play on the words humorous and humerus, the bone on which the medial epicondyle is located, [2] although according to the Oxford English Dictionary, it may refer to "the peculiar sensation experienced when it is struck". [3] Medial epicondyle fracture of the humerus are common when falling onto an ...