| PAP | pancreatitis-associated protein; Papanicolaou [test]; papaverine; passive-aggressive personality; pa... |
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| 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... |
| PF | pair feeding; peak flow; perfusion fluid; pericardial fluid; periosteal fibroblast; peritoneal fluid... |
| heart valve prosthesis implantation | Surgical insertion of synthetic material to repair injured or diseased heart valves. (12 Dec 1998) |
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| Heister's valve | A series of crescentic folds of mucous membrane in the upper part of the cystic duct, arranged in a somewhat spiral manner. Synonym: plica spiralis ductus cystici, Amussat's valve, Heister's valve, spiral valve of cystic duct, valvula spiralis. (05 Mar 2000) |
| Heyer-Pudenz valve | A valve used in the shunting procedure for hydrocephaly; consisting of a catheter-valve system in which the ventricular catheter leads the cerebrospinal fluid into a one-way pump through which the cerebrospinal fluid passes down the distal catheter into the right atrium of the heart. (05 Mar 2000) |
| pulmonic valve | <anatomy, cardiology> The heart valve that divides the right ventricle and the pulmonary artery. The pulmonic valve opens when the right ventricle contracts allowing blood to flow into the pulmonary artery. The pulmonic valve on closure prohibits the backwash of unoxygenated blood into the right ventricle. The pulmonic valve has 3 valve cusps. (27 Sep 1997) |
| semilunar valve | <anatomy, cardiology> Refers to a type of valve, aortic or pulmonic valves. (27 Sep 1997) |
| septal cusp of tricuspid valve | The leaflet of the tricuspid valve located adjacent to the interventricular septum. Synonym: cuspis septalis valvae atrioventricularis dextrae. (05 Mar 2000) |
| pyloric valve | <anatomy> The valve which opens to allow gastric contents to enter the duodenum. (27 Sep 1997) |
| Huschke's valve | A fold of mucous membrane guarding the lower opening of the nasolacrimal duct. Synonym: plica lacrimalis, Bianchi's valve, Hasner's fold, Hasner's valve, Huschke's valve, Rosenmuller's valve. (05 Mar 2000) |
| spiral valve of cystic duct | A series of crescentic folds of mucous membrane in the upper part of the cystic duct, arranged in a somewhat spiral manner. Synonym: plica spiralis ductus cystici, Amussat's valve, Heister's valve, spiral valve of cystic duct, valvula spiralis. (05 Mar 2000) |
| nasal valve | The variable aperture between the nasal septum and the moveable inferior margin of the lower lateral nasal cartilage. (05 Mar 2000) |
| Starr-Edwards valve | A cage and ball artificial cardiac valve with high reliability and durability. (05 Mar 2000) |
| nodule of semilunar valve | A nodule at the centre of the free border of each semilunar valve at the beginning of the pulmonary artery and aorta. Synonym: nodulus valvulae semilunaris, Arantius' nodule, Bianchi's nodule, corpus arantii, Morgagni's nodule. (05 Mar 2000) |
| nonrebreathing valve | A type of valve that prevents mixture of inhaled and exhaled gases. (05 Mar 2000) |
| sylvian valve | An endocardial fold extending from the anterior inferior margin of the inferior vena cava to the anterior part of the limbus fossa ovalis. Synonym: valvula venae cavae inferioris, caval valve, eustachian valve, sylvian valve. (05 Mar 2000) |
| d valve | <mechanics> A kind of slide valve. See Slide valve, under Slide. Source: Websters Dictionary (01 Mar 1998) |