InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
What is valves |
|
Answer» Vavles present in vein vescles Because Vavles working is that flows of blood in backward direction from body to heart. Valves are flap-like structures present in heart that allow blood to flow in one direction. The valves control the flow of blood through the heart by opening and closing during the contractions of the heart. The opening and closing functions of the valves are controlled by pressure differences generated within the heart, as well as some muscles located within the heart. The heart has two kinds of valves, atrioventricular and semilunar valves. \tThe two atrioventricular (AV) valves, which are between the atria and the ventricles, are the mitral valve and the tricuspid valve.\tThe two semilunar (SL) valves, which are in the arteries leaving the heart, are the aortic valve and the pulmonary valve.Thus there are\xa0four valves in all. |
|