everyday science MCQ #3778

The amount of blood pumped by the heart during each heartbeat is called:

everyday science MCQ #3778

  1. Question 1

    Q1. The amount of blood pumped by the heart during each heartbeat is called:

    • A) Tidal volume
    • B) Stroke volume
    • C) Pulse
    • D) Cardiac output

    Answer: Stroke volume

    Explanation: Stroke volume is the quantity of blood ejected by the left ventricle in a single contraction; cardiac output is stroke volume multiplied by heart rate, while tidal volume refers to breathing.