right atrioventricular orifice
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Right atrioventricular orifice — Section of the heart showing the ventricular septum. (Right atrioventricular orifice visible at left, but not labeled.) Latin ostium atrioventriculare dextrum Gray s … Wikipedia
orifice — Any aperture or opening. SEE ALSO: aperture, opening, os, ostium, meatus. SYN: orificium [TA]. [L. orificium] anal o. SYN: anus. aortic o. [TA] the opening from the left … Medical dictionary
Left atrioventricular opening — Latin ostium atrioventriculare sinistrum Gray s subject #139 533 The left atrioventricular opening (mitral orifice) is placed below and to the left of the aortic orifice. It is a little smaller than the corresponding aperture of the opposite side … Wikipedia
Cusp — In reference to heart valves, one of the triangular segments of the valve which opens and closes with the flow of blood. In reference to teeth, a raised area of the biting surface. * * * 1. In dentistry, a conical elevation arising on the surface … Medical dictionary
ostium — A small opening, especially one of entrance into a hollow organ or canal. SEE ALSO: orifice, opening, os, mouth (2). [L. door, entrance, mouth] o. abdominale tubae uterinae [TA] SYN: abdominal o. of uterine tube … Medical dictionary
ostium atrioventriculare dextrum — [TA] right atrioventricular opening: the opening between the right atrium and the right ventricle of the heart, guarded by the right atrioventricular valve; called also tricuspid orifice and right atrioventricular orifice … Medical dictionary
valve — 1. A fold of the lining membrane of a canal or other hollow organ serving to retard or prevent a reflux of fluid. 2. Any formation or reduplication of tissue, or flaplike structure … Medical dictionary
human cardiovascular system — ▪ anatomy Introduction organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the… … Universalium
heart — A hollow muscular organ that receives the blood from the veins and propels it into the arteries. In mammals it is divided by a musculomembranous septum into two halves right or venous and left or arterial each of which consists of a receiving… … Medical dictionary
Bundle of His — Infobox Anatomy Name = Bundle of His Latin = fasciculus atrioventricularis GraySubject = GrayPage = Caption = Bundle of His is near ventricular septum. Caption2 = Heart cut away showing Bundle of HisSchematic representation of the… … Wikipedia
