Discuss a ventricular systole Discuss a ventricular systoleS

Solution

Systole is represented as the period of contraction of the ventricles of the heart which is found to occur between the first and second heart sounds of the cardiac cycle.

Because of systole only, the blood will be ejected into the aorta and pulmonary trunk.

Through ventricular systole, the left lower chamber or the ventricles of the heart will be contracted and will force the blood into the aorta and pulmonary artery.

As we all know that the heart consists of two upper chambers, or atria, and two lower chambers called ventricles. Each heartbeat is comprised of ventricular systole and ventricular diastole. The two ventricles of the heart will act as two pumps and work together side by side and ventricular pump will work in a cycle, first relaxes to fill with blood and then contract to eject the blood. The ventricular systole is the period of ventricular contraction and blood is ejected from the ventricles here and is followed by ventricular diastole. During the beginning of ventricular systole, the left ventricular pressure will be low, but the pressure increases due to the powerful contraction of the ventricular muscle and this will cause the backflow of blood from the left ventricle to the left atrium, and the blood is ejected from the left ventricle into the aorta.

Four cardiac valves will regulate the blood flowing in and out of the chambers and the right ventricle will be responsible for pumping deoxygenated blood from the right atrium to the lungs, so that the deoxygenated blood can be oxygenated.

Now the oxygenated blood from the lungs will flows into the left atrium, and then it will reach the left ventricle, so that it can sends oxygenated blood through the arteries to fulfil body’s requirements.