An average, healthy adult heart pumps about gallons of blood every seconds.

a. two; 60

b. four; 30

c. three; 120

d. two; 120

A. two; 60

Explanation:

The heart is a muscle and as a muscle it has to work, the job it has to perform is pumping blood to the rest of the body, a healthy adult heart needs to pump 2 gallons of freshly oxygenated blood to the rest of the boyd in approximately 60 seconds, this is normally at rest, when physical activity is experienced the amount of blood that is pumped tends to be more.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.

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