| vestibular apparatus | <anatomy> The receptor organ of the vestibular portion of the 8th cranial nerve, consisting of the three saemicircular canals and the otolith, located within the petrous portion of the temporal bone of the skull. (05 Mar 2000) |
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| McCrea sound | A gently curved sound used to dilate the urethra in infants or children. (05 Mar 2000) |
| cavernous voice sound | The hollow or metallic voice sound heard over a pulmonary cavity. (05 Mar 2000) |
| central apparatus | The centrosome and centrosphere. (05 Mar 2000) |
| respiratory apparatus | The organs that are involved in breathing. These include the nose, throat, larynx, trachea, bronchi, and lungs. (12 Dec 1998) |
| respiratory sound | A murmur, bruit, fremitus, rhonchus, or rale heard on auscultation over the lungs or any part of the respiratory tract. (05 Mar 2000) |
| Golgi apparatus | <cell biology> Intracellular stack of membrane bounded vesicles in which glycosylation and packaging of secreted proteins takes place. Part of the GERL complex. Synonym: Golgi body, Golgi vesicles, dictyosome (in plants), parabasal body (in flagellate protozoa). (11 Jan 1998) |
| percussion sound | Any sound elicited on percussing over one of the cavities of the body. (05 Mar 2000) |
| mental apparatus | Mental structure consisting of thoughts, feelings, cognitions, and memories; in psychoanalysis, the topographic structure of the mind. (05 Mar 2000) |
| pericardial friction sound | A to-and-fro grating, rasping, or, rarely, creaking sound heard over the heart in some cases of pericarditis, due to rubbing of the inflamed pericardial surfaces as the heart contracts and relaxes; during normal sinus rhythm it is usually triphasic; during any rhythm it may be biphasic or uniphasic. Synonym: pericardial rub, pericardial friction rub. (05 Mar 2000) |
| Mercier's sound | A catheter the beak of which is short and bent almost at a right angle. (05 Mar 2000) |
| chromatic apparatus | The deeply staining mass of chromosomes in a dividing cell. (05 Mar 2000) |
| chromidial apparatus | The aggregate of extranuclear network, irregular strands, and masses of basophilic staining material permeating the protoplasm of the cell. See: ribosome, endoplasmic reticulum. (05 Mar 2000) |
| Roughton-Scholander apparatus | A syringe-like device for analyzing the respiratory gases in a small sample of blood. Synonym: Roughton-Scholander syringe. (05 Mar 2000) |
| mitotic apparatus | See: mitosis, spindle fibre. (18 Nov 1997) |