heart valves function

Anatomy and Function of the Heart Valves

When the heart valves function muscle contracts and relax, the valves open and close, allowing blood to enter the chambers and atria in alternating times. The following is a step-by-step description of how valves function normally in the left ventricle: After the left ventricle shrinks, the aortic valve closes and the mitral valve opens to allow blood flow from the left atrium to the left ventricle.


heart valves function


The aorta is the largest single blood vessel in the body. This is approximately the diameter of the thumb. This vessel carries oxygen-rich blood from the left ventricle to various parts of the body. Pulmonary valve

Pulmonic valve

In the heart valves function, The pulmonary valve separates the right ventricle from the pulmonary artery. As the chambers shrink, the oxygen-free blood collected in the right ventricle flushes to the lungs. It closes when the chambers relax, preventing blood from returning to the heart. Trigeminal valve

Trigeminal valve

The tricuspid valve separates the right atrium from the right ventricle. It is opened so that the deoxygenated blood accumulated in the right atrium can flow to the right ventricle. It closes when the right-side shrinks, preventing the return of blood to the right atrium; in this way, forcing him to go through the pulmonary valve to the right atrial pulmonary artery.

Right ventricle

The right ventricle receives deoxygenated blood from the body through the superior vena cava (head and upper body) and the lower vein (legs and lower torso). The implantation of the sinus node causes an impulse that causes the myocardium to contract in the atrium in a coordinated, wave-like manner. The tricuspid valve, which separates the right atrium from the right ventricle, opens to free oxygen-depleted blood accumulated in the right atrium and enters the right ventricle. 


Left Ventricle

In the heart valves function, The left ventricle receives oxygenated blood when the left atria shrink. The blood passes through the mitral valve to the right ventricle. The aortic valve leading to the aorta is closed, allowing the chamber to be filled with blood. When the chambers are full, they shrink. When the left ventricle contracts, the mitral valve closes and the aortic valve opens. Closure of the mitral valve prevents blood from entering the left atrium, and the opening of the aortic valve allows blood to flow into the aorta and flow throughout the body. 


(Aortic) heart valves function

Aortic valve separates the left ventricle from the aorta. As the chambers shrink, it opens to allow the oxygenated blood collected in the left chamber to flow through the entire body. It closes when the chambers relax, preventing blood from returning to the heart. 

(Mitral) heart valves function

The mitral valve separates the left atrium from the left ventricle. It opens to allow oxygenated blood collected in the left atrium to flow into the left ventricle. It closes when the left ventricle shrinks, preventing the return of blood to the left atrium; in this way forcing him to go through the aortic valve to the aorta. He left the Atrium


(Pulmonary trunk) heart valves function

In the heart valves function, The vessel that emerges from the right ventricle extends upward and divides into the right and left pulmonary arteries that carry the uninfected blood to the lungs. When the right chamber comes into contact, the blood inside it will be subjected to pressure, and the tricuspid valve between the right atrium and the ventricle will close. The only way out of the right ventricle blood is through the lung trunk. The pulmonary trunk is located in the right ventricle, which is the aorta located in the left ventricle – the output vial.


What is heart valve disease?

Heart valves can have one of two faulty effects:

regurgitation valve (s) does not close completely, causing the blood to flow backward instead of forward through the valve. narrowing the valve (s) opening is narrowing or not forming properly, inhibiting blood flow from the chamber or atria. The heart is forced to pump blood with increased strength to pass blood through the rigid (tapering) valve (s). The heart valves can have both abnormalities (regurgitation and stenosis).


When the heart valves do not open and close properly, the implications for the heart may be serious, possibly impeding the ability of the heart to properly pump blood through the body. Problems with heart valves are one of the causes of heart failure.


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