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प्रश्न
Draw diagrammatic representation of cardiac cycle. Explain ventricular systole.
दीर्घउत्तर
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उत्तर
Diagrammatic representation of Cardiac Cycle
Ventricular systole (VS):
- The impulse originating from SA node reaches the AV node and it gets excited. The AV node sends impulses to bundle of His and from bundle of His to Purkinje fibers. Purkinje fibers further spread impulses all over the wall of ventricles.
- Due to this, ventricular wall contracts causing ventricular systole. During ventricular systole, right ventricle pumps deoxygenated blood into pulmonary trunk and left ventricle pumps oxygenated blood into aorta.
- During ventricular systole the cuspid valves close both the atrioventricular apertures preventing blood flow into atria (lubb sound is heard).
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संबंधित प्रश्न
Long answer question:
A man’s pulse rate is 68 and cardiac output is 5500 cm3 . Find the stroke volume.
In cardiac cycle for how Long atrial systole lasts?
With which of the following event the cardiac cycle starts?
The longest phase of cardiac cycle is ____________.
Name the two valves that open during this phase.
What is Cardiac output?
Cardiac output is ______.
When the oxygen supply to the tissue is inadequate the condition is ______.
In which one of the following pair, the two items mean one and the same thing?
Give reason:
The wall of left ventricle is thicker than right ventricle
