FACTS: An adult heart is about the size of your fist and consists of four chambers: the right atrium, right ventricle, left atrium, and left ventricle. Blood flows from the right atrium to the right ventricle, and to the lungs to become oxygenated. Blood then re-enters the heart through the pulmonary veins to the left atrium, then the left ventricle pumps it through the aorta out to the body.
Giantmicrobes are based on actual microbes, cells, organisms and other critters, only 1,000,000 times their actual size!
Stuffed with polyester fibre fill.
Surface washable: sponge with water & soap, air dry.