Pulse – the rhythmic bumping you feel on your wrist as your heart pushes blood through your body. The faster your heart beats, the faster your pulse.
Heart – a muscle that pumps blood through your entire body 24 hours a day/7 days a week your entire life. It pumps six quarts of blood per minute.
The blood brings oxygen to your entire body. When you exercise, your body needs more oxygen and energy, so your heart pumps faster (speeds up).
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