Question

At the end of joint diastole ventricle is
1) completely filed by bloo
2) 1/2 filled by blood
3) 1/3 filled by blood
4) completely empty

Answer 1

At the end of the joint , diastole ventricle is :-

1) Completely filled by blood .

2) $\frac{1}{2}$ filled by blood .

3) $\frac{1}{3}$ filled by blood .

4) Completely empty . ✔✔✔

Answer 2

Correct Question:

At the end of joint diastole ventricle is

1) completely filed by blood 2) $\frac{2}{3}$ filled by blood 3) $\frac{1}{3}$ filled by blood

4) completely empty.

Answer:

2/3 filled by blood

At the end of joint diastole ventricle is 2/3 filled by blood.

Explanation:

At the end of joint diastole, blood fills $\frac{2}{3}$ of the ventricle; the remaining blood is filled by active atrial contraction during atrial systole.

The atria relax (atrial diastole) during ventricular contraction and receive venous return from both the body and the lungs. The lower chambers then relax during ventricular diastole, allowing for initial passive filling of the thick-walled ventricles and emptying of the atria. At the end of diastole, both atria contract, allowing more blood to enter the ventricles. Systole is the period of time when the left and right ventricles contract and eject blood into the aorta and pulmonary artery, respectively.