| PAM | pancreatic acinar mass; penicillin aluminum monostearate; peptidylglycine alpha-amidating monooxygen... |
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| PAP | pancreatitis-associated protein; Papanicolaou [test]; papaverine; passive-aggressive personality; pa... |
| pa-pv | pulmonary arterial pressure-pulmonary venous pressure |
| PAS | para aminosalicylate; Parent Attitude Scale; patient administration system; patient appointments and... |
| PE | Edinburgh Pharmacopoeia; pancreatic extract; paper electrophoresis; partial epilepsy; pelvic examina... |
| right heart bypass | Introduction of a circuit shunting blood from the venae cavae around the right atrium and ventricle and directly into the pulmonary artery. (05 Mar 2000) |
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| right margin of heart | The border between the sternocostal and diaphragmatic surfaces of the heart; it is fairly well defined in fixed hearts but is rounded and indefinite in the living heart. Synonym: margo dexter cordis, right margin of heart. (05 Mar 2000) |
| round heart | Abnormally smooth arcuate contours of the heart due either to disease of the ventricles or to a false cardiac appearance produced by excessive pericardial fluid. Synonym: globular heart. (05 Mar 2000) |
| mitochondria, heart | The mitochondria of the myocardium. (12 Dec 1998) |
| white-heart | <botany> A somewhat heart-shaped cherry with a whitish skin. Source: Websters Dictionary (01 Mar 1998) |
| compensatory hypertrophy of the heart | Thickening of the walls of the heart in response to vascular, valvular, other heart disease, or athletic conditioning. (05 Mar 2000) |
| movable heart | A heart that moves unduly on change of bodily position. Synonym: movable heart. (05 Mar 2000) |
| compliance of heart | The reciprocal of passive or diastolic stiffness of the ventricle of the heart, most commonly of the left ventricle; one may distinguish between compliance of the muscle and compliance of the supportive structures, although ordinarily both are considered together (chamber compliance); a hypertrophied or scarred heart will manifest a stiff wall, i.e., decreased compliance. (05 Mar 2000) |
| conducting system of heart | The system of atypical cardiac muscle fibres comprising the sinoatrial node, internodal tracts, atrioventricular node and bundle, the bundle branches, and their terminal ramifications into the Purkinje network; sometimes also called cardionector. (05 Mar 2000) |
| wooden-shoe heart | <radiology> The radiographic configuration of the heart in the tetralogy of Fallot; the elevated apex gives a silhouette like that of a wooden shoe Synonym: sabot heart, wooden-shoe heart. (05 Mar 2000) |
| congenital heart block | Atrioventricular block present in utero or at birth and usually of advanced or complete degree. (05 Mar 2000) |
| congestive heart failure | A condition where there is ineffective pumping of the heart leading to an accumulation of fluid in the lungs. Typical symptoms include shortness of breath with exertion, difficulty breathing when lying flat and leg or ankle swelling. Causes include chronic hypertension, cardiomyopathy and myocardial infarction. (27 Sep 1997) |
| muscle of heart | muscle |
| muscular part of interventricular septum of heart | The thick muscular portion which comprises most of the interventricular septum of the heart. Synonym: pars muscularis septi interventricularis cordis, septum musculare ventriculorum. (05 Mar 2000) |
| myocytolysis of heart | Local loss of myocardial syncytium as a result of a metabolic imbalance, insufficient in intensity or duration (or both) to cause stromal injury or to elicit any reactive exudation. (05 Mar 2000) |