| AL | absolute latency; acinar lumen; acute leukemia; adaptation level; albumin; alcoholism [and other dru... |
|---|---|
| ALS | acute lateral sclerosis; advanced life support; afferent loop syndrome; amyotrophic lateral sclerosi... |
| ALW | arch-loop whorl |
| bHLH | basic helix-loop-helix |
| bHLH-ZIP | basic helix-loop-helix-leucine zipper |
| ampulla of milk duct | A circumscribed spindle-shaped dilation of the lactiferous duct just before it enters the nipple. In nursing mothers this dilatation stores a droplet of milk which is expressed by compression as the infant begins to suckle; this is thought to encourage continual suckling while the let-down reflex ensues. Synonym: sinus lactiferi, ampulla lactifera, ampulla of milk duct, lactiferous ampulla. (05 Mar 2000) |
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| ampulla of rectum | A dilated portion of the rectum just above the anal canal. Synonym: ampulla recti, ampulla of rectum. (05 Mar 2000) |
| ampulla of the saemicircular canals | A circumscribed dilation of one extremity of each of the three bony saemicircular canals, anterior, posterior, and lateral; each contains an ampulla of the saemicircular ducts. Synonym: ampulla ossea, osseous ampulla. (05 Mar 2000) |
| ampulla of the saemicircular ducts | A nearly spherical enlargement of one end of each of the three saemicircular ducts, anterior, posterior, and lateral, where they connect with the utricle. Each contains a neuroepithelial crista ampullaris. Synonym: ampulla membranacea, membranous ampulla. (05 Mar 2000) |
| ampulla of uterine tube | The wide portion of the uterine (fallopian) tube near the fimbriated extremity; it has a complexly folded mucosa with a columnar epithelium of mostly ciliated cells between which are secretory cells. Synonym: ampulla tubae uterinae. (05 Mar 2000) |
| ampulla of vater | A dilatation of the ducts (tubes) from the liver and pancreas at the point where they enter the small intestine (duodenum). (27 Sep 1997) |
| ampulla ossea | A circumscribed dilation of one extremity of each of the three bony saemicircular canals, anterior, posterior, and lateral; each contains an ampulla of the saemicircular ducts. Synonym: ampulla ossea, osseous ampulla. (05 Mar 2000) |
| ampulla recti | A dilated portion of the rectum just above the anal canal. Synonym: ampulla recti, ampulla of rectum. (05 Mar 2000) |
| ampulla tubae uterinae | The wide portion of the uterine (fallopian) tube near the fimbriated extremity; it has a complexly folded mucosa with a columnar epithelium of mostly ciliated cells between which are secretory cells. Synonym: ampulla tubae uterinae. (05 Mar 2000) |
| Vater's ampulla | The dilatation formed by junction of the common bile duct and the pancreatic ducts proximal to their opening into the lumen of the duodenum. (12 Dec 1998) |
| rectal ampulla | A dilated portion of the rectum just above the anal canal. Synonym: ampulla recti, ampulla of rectum. (05 Mar 2000) |
| membranous ampulla | A nearly spherical enlargement of one end of each of the three saemicircular ducts, anterior, posterior, and lateral, where they connect with the utricle. Each contains a neuroepithelial crista ampullaris. Synonym: ampulla membranacea, membranous ampulla. (05 Mar 2000) |
| phrenic ampulla | A physiologic localised dilatation of the distal oesophagus, commonly demonstrated by oesophagography. (05 Mar 2000) |
| hepatopancreatic ampulla | The dilation within the major duodenal papilla that normally receives both the common bile duct and the main pancreatic duct. Synonym: ampulla hepatopancreatica, duodenal ampulla, Vater's ampulla. (05 Mar 2000) |
| sphincter of hepatopancreatic ampulla | The smooth muscle sphincter of the hepatopancreatic ampulla within the duodenal papilla. Synonym: musculus sphincter ampullae hepatopancreaticae, Glisson's sphincter, hepatopancreatic sphincter, Oddi's sphincter. (05 Mar 2000) |