Question

End-diastolic volume for each ventricle during rest is normally about:

A. 120 ml.
B. 25 ml.
C. 70 ml.
D. 50 ml.

Answer 1

The end-diastolic volume (EDV) for each ventricle at rest is about 120 mL, which is the volume of blood in the ventricles at the end of atrial systole, just before the ventricles contract. So, the correct answer is option a.

Step-by-step explanation:

The end-diastolic volume (EDV) for each ventricle during rest is normally about 120 mL. At the end of atrial systole and just prior to ventricular contraction, the ventricles contain this volume of blood, known as the EDV or preload. An average resting adult in a standing position will have approximately 120 mL of blood as their EDV, distinct from the end systolic volume (ESV) which is the amount of blood remaining in each ventricle after systole.

So, the correct answer is option a.