heart

(hart) [A.S. heorte.] hollow musciilar organ which receives the blood from the veins and propels it into the arteries. It is divided halves—right by a musculo-membranous septum into two or venous and left or arterial, each of which consists of a receiving chamber (auricle or atrium)and an ejecting chamber (ventricle); the orifices through which the blood enters and leaves the ventricles are provided with valves, the mitral and the aortic for the left ventricle, the tricuspid and the pulmonary for the right ventricle, ar'mored h., calcareous deposits in the pericardium occurring in subacute or chronic inflammation, bo'ny h., the presence of more or le extensive calcareous patches in the pericardium and walls of the heart, fatty h., (i) fatty degeneration of the myocardium; (2) an over accumulation of adipose ti ue on the external surface of the heart with sometimes an infiltration of fat between the muscle bundles of the heart wall;.cor adiposum. fi'broid h., chronic inflammation of the myocardium, with overgrowth of the connective ti ue. hairy h., pericarditis in which the heart is seen post mortem to be covered with a shaggy, fibrinous exudate; cor hirsutum, cor to men to sum, tri cho cardia, shaggy pericardium, i'cing h., pericarditis in which the heart is seen post mortem covered with a thick, white coat like the icing of cake, ir'ritable h., soldier's heart, D.A.H., neurocirculatory asthenia, a cardiac neurosis due to overstrain; marked by rapid pulse, dyspnea, and various neurotic symptoms, a ociated with an increased susceptibility to fatigue, observed especially in soldiers in active war service but noted occasionally also in civil life, left h., systemic h. lux'us h., a German term for combined dilatation and hypertrophy of the heart, of the left ventricle chiefly, pul'- monary h., the right auricle (atrium) and ventricle, receiving the venous blood and propelling it to the lungs, right h., pulmonary h. skin h., the peripheral blood-ve els, soldier's h., irritable h. system'lc h., the left auricle (atrium) and ventricle, receiving the aerated blood from the lungs and propelling it throughout the body, tiger h., a fatty degenerated heart in which the fat is disposed in the form of broken stripes. tobac'co h., cardiac irritability marked by irregular action, palpitation, and sometimes pain, occurring as a result of the exce ive use of tobacco, absence, a cardia. atrophy, a card i atrophia, cardlatrophy, atrophia cord is, calculus, cardioHth. causing contraction, cardiooinetic, cardio kinetic. clot' in.