contestada

While the semilunar valves are open during a normal cardiac cycle, the pressure in the left ventricle is:
a. higher than the pressure in the the aorta
b. lower than the pressure in the aorta
c. the same as the pressure in the left atrium
d. lower than the pressure in the left atrium
a

Respuesta :

During a typical cardiac cycle, the semilunar valves are open and the left ventricle's pressure is lower than the aorta's pressure.

What transpires if the semilunar valves are open?

When the ventricles constrict, the semilunar valves open, ventricular pressure exceeds arterial pressure, and blood is pushed into the major arteries. However, when the ventricles relax, the semilunar valves close because arterial pressure is higher than ventricular pressure.

Which of the following happens throughout a cardiac cycle when the semilunar valves are open?

A fast blood ejection occurs at point as the semilunar valves open as a result of enhanced ventricular contractility. When it reaches point, the arterial pressure is at its highest. 13% of the cardiac cycle is typically spent in this period.

To know more about cardiac cycle visit:-

https://brainly.com/question/14797546

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