Question

Fill in the blanks.

(xiii) During ventricular contraction, ________ prevents the blood from moving from aorta into left ventricle.

Answer 1

Ventricular relaxation:

1. Once the ventricles get contracted and passed the blood to their respective arteries, that is right ventricle through the pulmonary artery to the lungs and the left ventricle through the aorta to the tissue, the ventricles start diastole (relaxation).
2. The ventricles get relaxed to get their chambers filled with blood by their respective atria.

Aorta:

1. Aorta is the largest artery that supplies blood to the whole body except the lungs.
2. The valve present at the entrance of the aorta is called the aortic valve.

During ventricular relaxation, aortic valve prevents blood from moving from the aorta into left ventricle.