| ascending part of duodenum | The terminal or fourth part of the duodenum, ascending from the horizontal part to the jejunum. Synonym: pars ascendens duodeni. (05 Mar 2000) |
|---|---|
| horizontal part of duodenum | pars horizontalis duodeni, inferior part of duodenum, pars inferior duodeni |
| superficial part of duodenum | See: duodenum. (05 Mar 2000) |
| superior part of duodenum | superior part of duodenum |
| descending part of duodenum | descending part of duodenum |
| inferior part of duodenum | pars horizontalis duodeni, inferior part of duodenum, pars inferior duodeni |
| sphincter of third portion of duodenum | A physiological sphincter supposedly located at the horizontal (inferior) portion of the duodenum. (05 Mar 2000) |
| superior flexure of duodenum | The flexure at the junction of the superior and descending parts of the duodenum. Synonym: flexura duodeni superior. (05 Mar 2000) |
| suspensory muscle of duodenum | A broad flat band of smooth muscle and fibrous tissue attached to the right crus of the diaphragm and to the duodenum at its junction with the jejunum. Synonym: musculus suspensorius duodeni, Treitz's ligament, Treitz's muscle. (05 Mar 2000) |
| duodenum | <anatomy> The first or proximal portion of the small intestine, extending from the pylorus to the jejunum, so called because it is about 12 fingerbreadths in length. Origin: L. Duodeni = twelve at a time (18 Nov 1997) |
| inferior flexure of duodenum | The bend at the junction of the descending and horizontal parts of the duodenum. Occasionally a bend, the left inferior duodenal flexure, occurs at the junction of the horizontal and ascending parts. Synonym: flexura duodeni inferior. (05 Mar 2000) |
| longitudinal fold of duodenum | A fold of mucosa on the medial wall of the descending part of the duodenum above the major duodenal papilla, probably caused by the relation to the common bile duct. Synonym: plica longitudinalis duodeni. (05 Mar 2000) |
| burns, first degree | A first degree burn is superficial and has similar characteristics to a typical sun burn. The skin is red in colour and sensation is intact. In fact, it is usually somewhat painful. (12 Dec 1998) |
| ventriculography, first-pass | Radionuclide ventriculography where a bolus of radionuclide is injected and data are recorded from one pass through the heart ventricle. Left and right ventricular function can be analyzed independently during this technique. First-pass ventriculography is preferred over gated blood pool imaging for assessing right ventricular function. (12 Dec 1998) |
| Mendel's first law | Factors that affect development retain their individuality from generation to generation, do not become contaminated when mixed in a hybrid, and become sorted out from one another when the next generation of gametes is formed. Synonym: Mendel's first law. (05 Mar 2000) |