Cardio-respiratory Game

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major organ of the circulatory/cardiovascular system made of cardiac muscle and connective tissues

These tiny hairs cover the inside of the lungs.

another word for circulatory

smallest blood vessels in your body, only 1 cell thick.

Tiny air sacs where oxygen enters the blood and carbon dioxide leaves the blood (gas exchange)

Circulatory System Function

3 parts of the cardiovascular system

muscular bottom chamber of heart that pushes blood through the whole body under high pressure