Arteriosclerosis
a diseased condition of the arteries, arising in the internal coat as an inflammatory process, and resulting finally in the hardening of the muscular elastic coat. This produces an increase in the quantity of the connective tissue of the walls which results in a contraction of the blood vessels supplying the arteries. As a result these become weakened and easily easily ruptured. The disease is induced by a sedentary life and by overeating and drinking. In recent years it has become steadily more prevalent.
ARTERY (from aer air, and tereo= to watch over; teros=a watch, a guard.
So called because the ancients, finding that, in the dead bodies which they examined, the arteries were empty of blood, formed the idea that they were designed for the circulation of air through the system. The arteries are long, cylindrical tubes, with three coats, an external tunic commonly called the cellular coat, a middle or fibrous tunic or coat, and an epithelial tunic. The coating of the arteries is very elastic. The ARTESIAN WELLS largest arteries which leave the heart are the aorta and the pulmonary ar- tery; both spring from the base of the heart in front. They branch and anastery; both spring from the base of the heart in front. They branch and anasto the extremities from the heart, the tility of the arteries forces the blood to the extremities from the heart, the valves of which prevent its return.