Question

Stroke volume averages about:

A-180 ml per heartbeat.
B-120 ml per heartbeat.
C-25 ml per heartbeat.
D-70 ml per heartbeat."

Answer 1

The average stroke volume of a resting adult's heart is about 70 ml per heartbeat. So, the correct answer is option d.

Step-by-step explanation:

The average stroke volume of a resting adult's heart is about 70 ml per heartbeat. Stroke volume is the amount of blood pumped out of the left ventricle of the heart with each contraction. It can be influenced by various factors such as heart size, physical condition, and gender, but the normal range for stroke volume is generally between 55-100 ml.

So, the correct answer is option d.