Question

Name the valves in the heart. Name all four valves and where blood flows coming into and out of each valve

Answer 1

Human heart is a muscular organ that helps pump blood around the body and along with circulatory system it delivers oxygen and nutrients across the body cells.There is a network of arteries and veins called cardiovascular system that helps its functioning.The heart has 4 chambers and 4 valves for pumping blood in the right direction.The 2 chambers in the upper region is called atria and 2 chambers in lower region are called ventricles.
The four valves in the heart are Tricuspid valve which is located between the right atrium and right ventricle,Pulmonary valve that is located between right ventricle and pulmonary artery,Mitral valve that is located between left atrium and left ventricle and Aortic valve located between left ventricle and aorta(the largest artery beginning at the top of left ventricle).Mitral valve has two thin flaps of tissues called cusps and all other three valves have three flaps.When left ventricle relaxes mitral valve is opened and aortic valve is closed that lets blood flow from left atrium to left ventricle and if left ventricle contracts then mitral valve is closed and aorta valve is opened that lets blood flow into the aorta.When right ventricle relaxes pulmonary valve is closed and tricuspid valve is opened that lets blood flow from right atrium to right ventricle.When right ventricle contracts pulmonary valve is opened and tricuspid valve is closed that lets blood out from right ventricle to lungs.From lungs oxygenated blood reaches left atrium.