(c) What happens when the valves do not close properly or allow the backflow of blood? What are the functions of the four valves of the heart? What happens when the valves do not close properly or allow the backflow of blood? What are the functions of the heart, arteries, veins,...
the wall of a vein is much thinner them that of an artery because the middle layer of muscle and elastic fibers is thinner. Within some veins, valves allow blood to flow only toward the heart when they are open and prevent the backward flow of blood when they are closed.相关知识点: ...
What are main parts of the circulatory system and their functions? What are the three layers of the heart and their functions? What is the function of the valves found in the heart? Explain the function of the heart and blood in the circulatory system. ...
The mitral valve is one of the two atrioventricular valves that are located in the heart between the atria and the ventricles...
1. Understanding the Role of Valves: The heart contains structures known as valves that play a crucial role in maintaining the proper flow of blood. These valves ensure that blood moves in one direction and does not flow backward. 2. Types of Valves: There are several types of valves in ...
In people with prosthetic heart valves, what are the effects of combined antiplatelet and vitamin K antagonists (VKA) therapy compared with VKA monotherapyy?doi:10.1002/cca.406Benilde CosmiJohn Wiley & Sons, Ltd
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How interesting -- I never even knew that we had so many different types of valves in the heart. So what happens if your semilunar valve is damaged? Can it be replaced like any other heart valve, or is there another procedure to fix it?