Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream ...
An animated sequence which tours the human body, picturing and naming the major organs. The job of each organ is briefly explained. The brain, heart, lungs, stomach, liver, kidneys, intestines and ...
Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream ...
An animated sequence which tours the human body, picturing and naming the major organs. The job of each organ is briefly explained. The brain, heart, lungs, stomach, liver, kidneys, intestines and ...
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