Blood & circulation

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Give a tennis ball a good, hard squeeze. You're using about the same amount of force your heart uses to pump blood out to the body. Even at rest, the muscles of the heart work hard--twice as hard as the leg muscles of a person sprinting.

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Your Blood is made of

Plasma

Liquid part of blood

Red Blood Cells

They carry oxygen to all parts of the body

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White Blood Cells

Fight and kill germs that may enter your bloodstream

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Platelets

Form “scabs” when you cut yourself

Helps stop the bleeding

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Blood Types

Dr. Charles Drew * click on link for history of the Blood Bank

There are 4 main Blood Types:

Type A, Type B, Type AB, and Type O