The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...

It details the anatomy of earthworms, including their segmented bodies, bristles for locomotion, and digestive system that helps improve soil fertility. The earthworm's circulatory and respiratory ...

A continuation of the basic knowledge of human structure and function. The topics treated are cardiovascular system, lymphatic system, respiratory system, endocrine system, digestive system, ...