What is your heart? -- Heart beat -- Veins and arteries -- Blood -- Lungs -- Oxygen -- Breathing in -- Breathing out -- Talking -- Healthy heart and lungs.
Summary:
"Describes the circulatory and respiratory systems in simple language and tells how the heart and lungs deliver blood and oxygen to the body"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.