| NG tube | Naso-Gastric tube |
|---|---|
| PE tube | Polyethylene Ventilating tube placed in the eardrum |
| SB tube | Sengstaken-Blakemore tube |
| ET | educational therapy; effective temperature; ejection time; embryo transfer; endothelin; endotoxin; e... |
| OET | oral endotracheal tube; oral esophageal tube |
| fallopian tubes | The fallopian tubes normally transport the egg of the female from the egg sac, or ovary, to the womb, or uterus. Normal tubes have small hair like projections on the lining cells called cilia. These cilia are important to movement of the egg through the fallopian tube and into the uterus. If the tubal cilia are damaged by infection, the egg may not get 'pushed along' normally and can settle in the tube. Likewise, if infection causes partial blockage of the tube with scar tissue, this can also act to prevent the egg from getting to the uterus. Any process that narrows the tube and thus decrease the caliber of the passage way can increase the chance of an ectopic pregnancy. Examples of these would be endometriosis, tumours, or scar tissue in the pelvis (pelvic adhesions) that cause twisting or chinking of the tube. (12 Dec 1998) |
|---|---|
| zygote intra-fallopian transfer | <gynaecology> In vitro fertilization with a transfer of the zygote into the fallopian tube, a combination of in vitro fertilization and gamete intra-fallopian transfer. An assisted reproduction technique consisting of hormonal stimulation of the ovaries, laparoscopic follicular aspiration of oocytes, in-vitro fertilization, and intra-fallopian transfer of the zygote by transabdominal cannulation at the pronuclear stage (before cleavage). Acronym: ZIFT (12 Dec 1998) |
| Vieussens' isthmus | A muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart. Synonym: annulus ovalis, margin of fossa ovalis, Vieussens' annulus, Vieussens' isthmus, Vieussens' limbus, Vieussens' ring. (05 Mar 2000) |
| rhombencephalic isthmus | A constriction in the embryonic neural tube delineating the mesencephalon from the rhombencephalon, the anterior portion of the rhombencephalon connecting with the mesencephalon. Synonym: isthmus rhombencephali, isthmus of His. (05 Mar 2000) |
| Guyon's isthmus | An elongated constriction at the junction of the body and cervix of the uterus. Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. (05 Mar 2000) |
| pharyngeal isthmus | Communicating space between nasopharynx and oropharynx, sealed off by elevation of the soft palate and contraction of portions of the superior pharyngeal constrictor (palatopharyngal sphincter) during swallowing. (05 Mar 2000) |
| sphincter of the pharyngeal isthmus | A constant band of the superior pharyngeal constrictor muscle which sweeps posteriorly from the anterolateral part of the superior surface of the palatine aponeurosis. It creates a visible ridge when the superior constrictor is contracted, meeting the elevated soft palate to seal off the pharyngeal isthmus during swallowing. Synonym: pharyngeal ridge, sphincter of the pharyngeal isthmus, velopharyngeal sphincter. (05 Mar 2000) |
| isthmus | Origin: L. Isthmus, Gr. 'isqmos a neck, a neck of land between two seas, an isthmus, especially the Isthmus of Corinth; prob. From the root of 'ienai to go; cf. Icel. Eith isthmus. See Issue. <geography> A neck or narrow slip of land by which two continents are connected, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc. Isthmus of the fauces. <anatomy> See Fauces. Source: Websters Dictionary (01 Mar 1998) |
| isthmus aortae | A slight constriction of the aorta immediately distal to the left subclavian artery at the point of attachment of the ductus arteriosus. Synonym: isthmus aortae. (05 Mar 2000) |
| isthmus cartilaginis auris | A narrow bridge connecting the cartilage of the external acoustic meatus and the lamina of the tragus with the main portion of the cartilage of the auricle. Synonym: isthmus cartilaginis auris. (05 Mar 2000) |
| isthmus faucium | The constricted and short space which establishes the connection between the cavity of the mouth and the oro-pharynx, bounded anteriorly by the palatoglossal folds and posteriorly by the palatopharyngeal folds; the lateral well is the tonsillar fossa. Synonym: isthmus faucium. (05 Mar 2000) |
| isthmus glandulae thyroideae | The central part of the thyroid gland joining the two lateral lobes. Synonym: isthmus glandulae thyroideae. (05 Mar 2000) |
| isthmus gyri cinguli | The narrowing of the cingulate gyrus, at its transition with the hippocampal gyrus behind and below the splenium of the corpus callosum, caused by the anterior extension of the conjoined parieto-occipital and calcarine sulci. Synonym: isthmus gyri cinguli, isthmus of gyrus fornicatus, isthmus of limbic lobe. (05 Mar 2000) |
| isthmus meatus acustici externi | The narrowest portion of this canal in the bony part near its deep termination. Synonym: isthmus meatus acustici externi. (05 Mar 2000) |
| isthmus of aorta | A slight constriction of the aorta immediately distal to the left subclavian artery at the point of attachment of the ductus arteriosus. Synonym: isthmus aortae. (05 Mar 2000) |