Text, photographs, and illustrations discuss gross aspects of the human body, focusing on digestion, and discussing vomit, gas, feces, diarrhea, and constipation.
Describes the digestive system's parts and discusses each step of the digestive process in detail, covering such topics as taste buds, swallowing, the duration of digestion, pancreas juices, the villi of the small intestine, and the importance of the kidneys.
Presents an introduction to the human digestive system, explaining what it is and how it works, looking at the different parts of the digestive system, and discussing why people get upset stomachs.
Examines the digestive and excretory systems of the body and describes how food is broken down into molecules of nutrients that provide energy for the body and how the excretory system filters the blood and regulates the amount of salt and water in the body.