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Doctor insights on: When Does The Aortic Valve Close In The Heart

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When does the aortic valve close in the heart?

When does the aortic valve close in the heart?

During diastole : The aortic valve open to let the blood out of the left ventricle and into the aorta (the main vessel of the body) during systole (when the ventricle contracts) and closes in diastole to prevent regurgitation of the blood from the aorta back into the left ventricle. During this time the blood is moving from the atria and filling the ventricles. ...Read more

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Dr. Mark Pack
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Valve (Definition)

A valve is a structure that regulates the direction of flow. The heart is a special kind of pump. It moves blood by squeezing and relaxing. There are 4 chambers and each chamber has a valve. This keeps blood from moving backwards when the heart squeezes. When a chamber squeezes it lets the blood move forward but when the chamber is relaxed it prevents the blood from ...Read more


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When is the mitral valve in the heart closed?

When is the mitral valve in the heart closed?

Mitral valve: During ventricular systole the rising pressure in the left ventricle causes the mitral valve to close. ...Read more

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Which direction does the aortic valve pump in the heart?

Which direction does the aortic valve pump in the heart?

Out: The heart muscle, specifically the ventricles contract or "pump". When the left ventricle contracts, propelling blood out of the heart, the aortic valve opens allowing blood to exit the heart. The blood travels from the heart in your great artery called the aorta. ...Read more

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What happens to the pulmonary valve and the aortic valve when the ventricles begin to contract?

What happens to the pulmonary valve and the aortic valve when the ventricles begin to contract?

Aortic and pulmonary: When the ventricles begin to contract the aortic and pulmonary valves open when the ventricular pressure exceeds the arterial pressure on the far side of the valve. ...Read more

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What does the bicuspid valve do in the heart?

What does the bicuspid valve do in the heart?

Lots: I'm not sure what exactly you're referring to, but the typical valve with two leaflets is the mitral valve. It's usually not called "the bicuspid valve" though. A bicuspid aortic valve is a 2 leaflet aortic valve (should be 3) and is the most common congenital abnormality which can lead to aortic valve leaking or tightness later in life. ...Read more

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Which valve in the heart works harder, the bicuspid or tricuspid ?

Which valve in the heart works harder, the bicuspid or tricuspid ?

The same: There is no difference in the amount of work they do -it's just that one has 2 leaflets and the other 3. ...Read more

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Which heart valve closes first in the heart?

Which heart valve closes first in the heart?

Triscupid valve: As the heart contracts, the tricuspid valve is able to close before the mitral valve because it faces a lower systemic venous pressure compared to a slightly higher pulmonary venous pressure faced by the mitral valve. ...Read more

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In a normal aortic valve, what stops the valve cusps from opening too much? Or do they just open against the aortic walls?

Correct to a degree: They are like a parachute and open widely to a maximum length, but not quite to the adjoining wall, of aorta, so there is flow behind to the coronary orifices. More like a sheet floating in the wind. ...Read more

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Where are the tricuspid and bicuspid valves in the heart?

Where are the tricuspid and bicuspid valves in the heart?

Atria/venticle: The tricuspid valve is located between the right atria and right ventricle. It is the largest of the 4 valves of the heart. The bicuspid valve is located between the left atria and left ventricle. It is also known as the mitral valve. ...Read more

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Is the bicuspid valve opened or closed when the left atrium contracts?

Is the bicuspid valve opened or closed when the left atrium contracts?

Open: The bicuspid or mitral valve would be open when the left atrium contracts. It opens during diastole (heart is relaxed) and blood is flowing from the atrium to the ventricle. The contraction of the left atrium results in the valve opening wider and an increase in that flow. ...Read more

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Where is mitral valve located in the heart?

Where is mitral valve located in the heart?

Left side: The mitral valve is located on the left side of the heart, between the left atrium and the left ventricle. ...Read more

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Does heart depend on the condition of aortic valve in regurgitation?

Yes: The aortic valve(the valve that leads from the left ventricle to the rest of the body), if that valve leaks then the blood that was to go out to the body is coming back into the heart. A new batch of blood is entering in to the lv from the left atrium across the mitral valve , and this needs to go through the aortic valve to the rest of body. The lv has to work twice as hard and fails over time. ...Read more

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Where is mitral bicuspid valve located in the heart?

Where is mitral bicuspid valve located in the heart?

Mitral Valve: Bicuspid mitral valve is redundant. The (normal) mitral valve is bicuspid and named after a bishop's miter, which it resembles. The valve is located between the left atrium and left ventricle. It opens during diastole to fill the ventricle and closes during systole to prevent blood from leaking back. ...Read more

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How does coarctation of the aorta develop in the heart?

How does coarctation of the aorta develop in the heart?

Not in the heart: Coarctation of aorta by definition does not occur in the heart. It is usually in the descending segment of the aorta and it is congenital (person is born with it). The exact location is variable, sometimes it involves the aorta proximal to the take off of the left subcalvian (artery to the left arm) and at times distal to it. It is essentially a narrowing of the lumen of the artery. ...Read more

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What is in the aortic valve?

What is in the aortic valve?

Left side: The aortic valve is the outflow valve and it is located on the left side of the heart. It opens to allow blood to leave the left ventricle and it closes to prevent backflow of blood into the ventricle. ...Read more

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What is the function of the bicuspid valve in the heart?

What is the function of the bicuspid valve in the heart?

You mean malfunction: The aortic valve has 3 parts or leaflets. When its called bicuspid it has only 2 leaflets. This can be congenital or aquired. If two of the cusps fuse over time is called functional bicuspid vs congenital. Either way it creates an un natural flow across the valve and over time damage the valve. Most often the valve will need replace depending on age diagnosed.Most congen bicuspids will need repla. ...Read more

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Does a pump in the heart move blood from the atria to the ventricles?

Does a pump in the heart move blood from the atria to the ventricles?

The heart muscle: The heart is a muscle and it is the contraction of that muscle which propels the blood. ...Read more

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Which side of the heart is the aortic valve on?

Which side of the heart is the aortic valve on?

Left side: The aortic valve is on the left side of the heart where oxygenated blood leaves the left ventricle through it into the aorta and the rest of the circulation. ...Read more

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Dr. Lonnie Smith
3 doctors shared insights

Aortic Valve (Definition)

The aortic valve is one of 4 valves in the heart, each of which separates 2 cardiac chambers. It opens when blood is actively ejected from the left ventricle into the aorta artery, to be carried to the rest of the body. It then closes firmly to prevent blood from flowing backwards, while it passively continues to flow forward to body's vital organs. When next heartbeat ...Read more


Aorta (Definition)

The aorta is the largest artery in the body, leaving directly from the left ventricle of the heart to supply blood to the entire body. It is made of elastic tissue layers called "intima" and is subject to damage by high blood pressure, smoking, cholesterol, ...Read more