Which of the Following is Approximately 70 ML

Question

Which of the following is approximately 70 mL?
A) The cardiac output
B) The volume of a ventricle
C) An average stroke volume
D) The amount of blood that flows through the pulmonary capillaries in one minute

Accepted Answer

An average stroke volume is approximately 70 mL, which is the amount of blood that is ejected from the left ventricle into the aorta with each contraction of the heart. The cardiac output is the volume of blood pumped by the heart in one minute, which typically ranges from 4-8 L/min, so it is not approximately 70 mL. The volume of a ventricle, specifically the left ventricle, is approximately 140 mL, so it is not approximately 70 mL. The amount of blood that flows through the pulmonary capillaries in one minute is called the pulmonary blood flow, which is typically equal to the cardiac output, so it is also not approximately 70 mL.