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.
Examines what makes the heart work, how red blood cells carry oxygen and white blood cells protect the body, the different types of cells in the heart, and how the blood and lymphatic system protects against infection, as well as other important things about the heart.
"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.
Uses the fictional case of a missing man to detail the processes used by crime scene investigators to solve the mystery, with a focus on what can be concluded from blood found at the man's home.
Describes early theories on how the circulatory system functions, Harvey's "discovery" of the circulatory system, and advances since his time in this area of medicine.