Heart

lungs

The_________ is the center of the circulatory system.

heart

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bone

joint

muscle

The heart is a _muscle about the size of your fist.

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ribs

skull

joints

The________ protect your heart so when you fall down your heart is safe.

ribs

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Digestive system

Circulatorysystem

Respiratorysystem

The__________ takes the blood that contains oxygen and nutrients to all parts of our body.

circulatory system

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stomach

blood

heart

The_______ has 4 chambers.

heart

Home

takes

breathe

makes

The heart ______ movements that pump the blood around our body.

makes

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heart

lungs

stomach

The________ is the most important organ in the body.

heart

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