Human Heart

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Human heart is roughly the size of a fist
Its job is the pump the blood through the body's networks of blood vessels
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The heart weighs about 9-12 ounces
It carries oxygen and nutrients to all of your cells
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•It picks up carbon dioxide and other waste products that your body produces so they can be disposed of
The heart roughly beats 100,000 times a day
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4.The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute
6.Because the heart has its own electrical impulse, it can continue to beat even when separated from the body, as long as it has an adequate supply of oxygen
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5.Every day, the heart creates enough energy to drive a truck 20 miles. In a lifetime, that is equivalent to driving to the moon and back.
7.The fetal heart rate is approximately twice as fast as an adult’s, at about 150 beats per minute. By the time a fetus is 12 weeks old, its heart pumps an amazing 60 pints of blood a day
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Other cards in this set

Card 2

Front

The heart weighs about 9-12 ounces

Back

It carries oxygen and nutrients to all of your cells

Card 3

Front

•It picks up carbon dioxide and other waste products that your body produces so they can be disposed of

Back

Preview of the front of card 3

Card 4

Front

4.The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute

Back

Preview of the front of card 4

Card 5

Front

5.Every day, the heart creates enough energy to drive a truck 20 miles. In a lifetime, that is equivalent to driving to the moon and back.

Back

Preview of the front of card 5

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