Question

(a) Name the parts numbered 1 to 6

(b) What type of blood flows from the parts marked 1 & 2?

(c) Name the valve present between right auricle and right

ventricle. ​

Answer 1

Answer

1. The given diagram represents the phase of ventricular systole.

2. Both the heart ventricles are contracting in this phase since the semilunar valves are open.

3. 1 - Pulmonary artery

   2 - Aorta

   3 - Pulmonary vein

   4 - Left atria

   5 - Semilunar valves

   6 - Right ventricle

4. Deoxygenated and oxygenated blood flows through pulmory artery and pulmonary vein respectively.

5. Bicuspid and Tricuspid valves are closed in this phase to prevent backflow of blood into atria.