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Clovis Abshire

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2y ago
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9y ago

The AV valves will open as the atrium becomes filled with blood. The blood will easily go into the ventricles. When the atria contract they add more blood to the ventricles before the ventricles contract.

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8y ago

The AV valves open during ventricular relaxation. During this phase (diastole), the open valves allow the ventricles to fill.

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14y ago

The aortic valve opens

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Q: What occurs during left ventricular relaxation?
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The entrance to the ascending aorta is guarded by the valve?

The entrance to the ascending aorta is guarded by the aortic valve. It ensures that blood flows from the left ventricle into the aorta and prevents backflow into the heart. The aortic valve opens during ventricular contraction and closes to prevent blood from flowing back into the heart during ventricular relaxation.


What is the difference between lub and dub?

"Lub" refers to the first heart sound (S1) caused by the closure of the atrioventricular valves during ventricular contraction, while "dub" refers to the second heart sound (S2) caused by the closure of the semilunar valves during ventricular relaxation. Together, lub-dub represents a complete cardiac cycle.


What is the difference between Left Ventricular Hypertrophy and Left Ventricular Dysfunction?

LVH (Left Ventricular Hypertrophy) is (anatomical) structural condition and status of the heart, while Left Ventricular Dysfunction is disturbance in physiological functions and status of heart.


This valve is named after bishops'miter and prevents blood from entering the left atria during ventricular systole?

The valve you are referring to is the mitral valve, also known as the bicuspid valve. It prevents the backflow of blood from the left ventricle to the left atrium during ventricular contraction.


What occurs in the heart in response to hypertension?

Hypertension causes the left ventricular wall to thicken. This is followed by a dilatation of the left ventricle and a reduction in the amount of blood pumped from the heart.


What occurs when ventricular diastole takes place?

During ventricular diastole, the ventricles of the heart relax and fill with blood from the atria. This is the period when the heart muscles are relaxed, allowing blood to flow from the atria to the ventricles. Ventricular diastole is a crucial phase of the cardiac cycle that prepares the heart for the next phase of pumping blood out to the body.


Will the apical beat be shifted in left ventricular hypertrophy?

Yes, in left ventricular hypertrophy, the apical beat may be shifted laterally and inferiorly due to the increase in left ventricular mass and displacement of the apex by the hypertrophied myocardium.


Blood ejected from the ventricles enters which vessels during ventricular systole?

Blood ejected from the ventricles enters the pulmonary artery from the right ventricle and the aorta from the left ventricle during ventricular systole.


When does the blood flows through the coronary artery during left ventricular systole or right ventricular systole?

Neither, theoretically the two ventricles contract simultaneously. The coronary arteries begin as two holes just above the leaflets of the aortic valve. During systole the leaflets block the coronary arteries and prevent blood flow to them. It is during diastole (of both ventricles) that blood returns to the coronary vasculature.


Why is the ventricular wave higher?

The ventricular wave is higher in an electrocardiogram because the force generated by the larger and more muscular ventricles of the heart produce a greater electrical impulse, which results in a taller waveform. This reflects the depolarization and repolarization of the ventricles during their contraction and relaxation phases.


What is left ventricular perfusion?

Left Ventricular dysfunction-A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.


What is located between the two ventricular chambers and the large arteries that carry blood away from the heart when contraction occurs?

The mitral valve is located between the left atrium and left ventricle, and the aortic valve is located between the left ventricle and the aorta.