| AASD | American Academy of Stress Disorders |
|---|---|
| ADC | adult day care [facility]; affective disorders clinic; Aid to [Families with] Dependent Children; AI... |
| ADRDA | Alzheimer Disease and Related Disorders Association |
| ANAD | anorexia nervosa with associated disorders |
| ASDC | American Society of Dentistry for Children; Association of Sleep Disorders Centers |
| valve of coronary sinus | A delicate fold of endocardium at the opening of the coronary sinus into the right atrium. Synonym: valvula sinus coronarii, coronary valve, thebesian valve. (05 Mar 2000) |
|---|---|
| valve of foramen ovale | A fold projecting into the left atrium from the margin of the foramen ovale in the foetus; when, with beginning inspiration, the blood pressure within the left atrium increases, the valve closes and its edges become adherent to the margin of the foramen ovale, occluding it. Synonym: valvula foraminis ovalis, falx septi, valve of oval foramen. (05 Mar 2000) |
| valve of inferior vena cava | An endocardial fold extending from the anterior inferior margin of the inferior vena cava to the anterior part of the limbus fossa ovalis. Synonym: valvula venae cavae inferioris, caval valve, eustachian valve, sylvian valve. (05 Mar 2000) |
| valve of navicular fossa | A fold of mucous membrane sometimes found in the root of the navicular fossa of the urethra. Synonym: valvula fossae navicularis, Guerin's fold, Guerin's valve. (05 Mar 2000) |
| valve of oval foramen | A fold projecting into the left atrium from the margin of the foramen ovale in the foetus; when, with beginning inspiration, the blood pressure within the left atrium increases, the valve closes and its edges become adherent to the margin of the foramen ovale, occluding it. Synonym: valvula foraminis ovalis, falx septi, valve of oval foramen. (05 Mar 2000) |
| valve of Varolius | The bilabial prominence of the terminal ileum into the large intestine at the caecocolic junction as seen in cadavers; in the living individual it appears as a truncated cone with a star-shaped orifice. Synonym: valva ileocaecalis, Bauhin's valve, ileocaecal eminence, ileocolic valve, Tulp's valve, Tulpius' valve, valve of Varolius. (05 Mar 2000) |
| valve of vermiform appendix | A fold of mucous membrane, simulating a valve, sometimes found at the origin of the vermiform appendix. Synonym: Gerlach's valve, valvula processus vermiformis. (05 Mar 2000) |
| valve of Vieussens | A prominent valve in the great cardiac vein where it turns around the obtuse margin to become the coronary sinus. (05 Mar 2000) |
| valve-shell | <zoology> Any fresh water gastropod of the genus Valvata. Source: Websters Dictionary (01 Mar 1998) |
| parachute mitral valve | Congenital deformity of the mitral valve characterised by the presence of a single papillary muscle from which the chordae of both valve leaflets divide; thus the resemblance to a parachute; the condition often produces a stenosis as the combined result of the tugging action of the chordae on and the subsequent narrowing between the leaflets. Synonym: parachute deformity. (05 Mar 2000) |
| venous valve | A fold of the lining layer of a vein to prevent a reflux of blood. Synonym: valvula venosa. (05 Mar 2000) |
| Gerlach's valve | A fold of mucous membrane, simulating a valve, sometimes found at the origin of the vermiform appendix. Synonym: Gerlach's valve, valvula processus vermiformis. (05 Mar 2000) |
| Carpentier-Edwards valve | A bioprosthetic valve made from preserved porcine aortic valves. (05 Mar 2000) |
| vesicoureteral valve | <anatomy, urology> A lock mechanism in the wall of the intravesical portion of the ureter that normally prevents urinary reflux. (21 Jun 2000) |
| reducing valve | A valve designed to lower the pressure of a gas coming from a cylinder containing compressed gas under high pressure. (05 Mar 2000) |