An introduction to the respiratory system, looking at the role of the heart, veins and arteries, blood, and lungs in the process of breathing, and including activities and a glossary.
An introduction to the respiratory system, looking at the role of the heart, veins and arteries, blood, and lungs in the process of breathing, and including activities and a glossary.
Overview of the respiratory and circulatory systems, with an explanation of how these systems bring oxygen to the body's cells and carry wastes away. Explores the major parts of each system and describes how scientists are working to find replacements for what fails or wears out.
"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.
Presents a study of the heart, lungs, and blood and describes the airways and breathing, how the heart works, and how the blood helps to fight against diseases.