. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. 336 THE ANIMALS AND MAN rounded head of the femur (F) fitting exactly into the socket and attached to its base by the capsular lig- aments. The surface of the ball and of the socket are each covered with a smooth elastic cartilage to prevent friction. Cover- ing- the inside of the ligaments there is a thin membrane, the synovial membrane, which secretes a thick viscid fluid. Fig. 171. Articulation of pelvis and hip-joint seen from before. (The anterior half of the capsular ligament of the left h
. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. 336 THE ANIMALS AND MAN rounded head of the femur (F) fitting exactly into the socket and attached to its base by the capsular lig- aments. The surface of the ball and of the socket are each covered with a smooth elastic cartilage to prevent friction. Cover- ing- the inside of the ligaments there is a thin membrane, the synovial membrane, which secretes a thick viscid fluid. Fig. 171. Articulation of pelvis and hip-joint seen from before. (The anterior half of the capsular ligament of the left hip-joint has been removed and the femur rotated outvi'ards.) F, femur; H L, capsular ligament of hip-joint; S, sacrum; L, vertebral ligament inserted on sacrum; L I, ligaments inserted on vertebrae. (After Allen Thomson.) called synovial fluid. This acts as a lubricating fluid for joints. In a hinge joint, as at the elbow, the bones are so connected as to admit of motion in only two directions, like a door upon hinges. Dislocation, fractures and sprains.—A dislocation occurs when the bones of a joint are forced out of place. The bones must be replaced at once by a physician. In the meantime the pain may be relieved by hot or ice cold Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kellogg, Vernon L. (Vernon Lyman), 1867-1937; McCracken, Mary Isabel. New York, H. Holt and Company
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