Explains how the respiratory system works, and discusses its role in the human body, problems that can affect the respiratory system, and how to keep lungs healthy.
Explains how the parts of the respiration and circulation systems work and illustrates the actions and functions of breathing, talking, the heart, and blood through interesting facts.
Answers several questions on the processes shared by most living things, including reproduction, cellular respiration, and several others, and presents instructions for three demonstrations.
An overview of the human respiratory system that covers its components and processes, its common malfunctions and diseases, tests and treatments, doctors and scientists who have made significant discoveries, and historic and contemporary research.
Describes the respiratory system, including how it works to bring air from the lungs to the rest of the body, why it is important for vital body function, and how to keep the system healthy.
Explains what happens inside the human body when a person breathes, presenting magnified photos and color diagrams, comparing humans to different kinds of animals, and discussing related topics such as speaking, singing, hicupping, yawning, sneezing, and coughing, as well as asthma and smoking.
Text, photographs, and illustrations discuss gross aspects of the human body, focusing on reflexes, such as twitches and sneezing, and discussing hiccups, blinking, choking, signs of a cold, hay fever, sniffing, coughs, and germs.
Presents an introduction to the human respiratory system, explaining what it is and how it works, looking at the role of blood in the respiratory system, and discussing why breathing problems occur.
