| bivalve speculum | A speculum with two adjustable blades. (05 Mar 2000) |
|---|---|
| Pedersen's speculum | A narrow flat speculum used in vaginas with a narrow introitus. (05 Mar 2000) |
| Cooke's speculum | A three-pronged speculum for rectal examinations and operations. (05 Mar 2000) |
| speculum | Origin: L, fr. Specere to look, behold. See Spy. 1. A mirror, or looking-glass; especially, a metal mirror, as in Greek and Roman archaeology. 2. A reflector of polished metal, especially one used in reflecting telescopes. See Speculum metal, below. 3. <surgery> An instrument for dilating certain passages of the body, and throwing light within them, thus facilitating examination or surgical operations. 4. <ornithology> A bright and lustrous patch of colour found on the wings of ducks and some other birds. It is usually situated on the distal portions of the secondary quills, and is much more brilliant in the adult male than in the female. Speculum metal, a hard, brittle alloy used for making the reflectors of telescopes and other instruments, usually consisting of copper and tin in various proportions, one of the best being that in which there are 126.4 parts of copper to 58.9 parts of tin, with sometimes a small proportion of arsenic, antimony, or zinc added to improve the whiteness. Source: Websters Dictionary (01 Mar 1998) |
| speculum forceps | A tubular forceps for use through a speculum. (05 Mar 2000) |
| stop-speculum | A dilating speculum, as a speculum of the eyelids, which is provided with a catch to prevent its being opened too wide. (05 Mar 2000) |
| duckbill speculum | A bivalve speculum, the blades of which are broad and flattened, resembling a duck's bill, used in inspection of the vagina and cervix. (05 Mar 2000) |
| eye speculum | An instrument for keeping the eyelids apart during inspection of or operation on the eye. Synonym: blepharostat. (05 Mar 2000) |
| Kelly's rectal speculum | A tubular speculum with obturator for rectal examination. (05 Mar 2000) |
| anal | <anatomy> Pertaining to the anus. (18 Nov 1997) |
| anal atresia | A congenital obstruction of the anal opening. Occurs in approximately 1 in 5,000 infants. This condition is corrected through surgery. (27 Sep 1997) |
| anal canal | The terminal portion of the alimentary canal; it extends from the pelvic diaphragm to the anal orifice. Synonym: canalis analis. (05 Mar 2000) |
| anal cleft | The sulcus between the buttocks (nates). Synonym: crena ani, anal cleft, crena clunium, gluteal cleft. (05 Mar 2000) |
| anal columns | A number of vertical ridges in the mucous membrane of the upper half of the anal canal formed as the caliber of the canal is sharply reduced from that of the rectal ampulla. Synonym: columnae anales, Morgagni's columns, rectal columns. (05 Mar 2000) |
| anal crypts | The grooves between the anal columns. Synonym: Morgagni's sinus. Pockets or crypts in the columnar zone of the anal canal between the anocutaneous line and the anorectal line; the sinuses give the mucosa a scalloped appearance. Synonym: sinus anales, anal crypts, Morgagni's crypts, rectal sinuses. (05 Mar 2000) |