Heart and lungs

The heart and lungs are important parts of our body the heart pumps blood the lungs create oxygen .

How the circulatory system works:

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The lungs breathe in and makes oxygen rich.

. Arteries carry oxygen rich around the body and the heart.

.

Plasma carry's red blood cells around the body.

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The veins carry oxygen poor back to the heart.

The heart

The heart is a muscular type of organ

which has four chambers and pumps

blood around the body.

Question?

What is more important your

heart or the brain?

Types of blood

Red blood cells

white blood

cells fight

disease's.

platelets

Antigens

Antigens have two types a and b

but there are more a and b and o which have no antigens and some people have antigens and some do not .

List of antigens

. a

. b

. a,b

. o