The document summarizes the key components and functions of the digestive system. It describes the digestive system as having two main groups of organs: the alimentary canal and accessory digestive organs. The alimentary canal is a continuous hollow tube consisting of the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. Food is broken down through digestion and nutrients are absorbed through the small intestine into the bloodstream and used for metabolism.

1. The Digestive System and Body Metabolism

4. Organs of the Digestive System Figure 14.1

16. Layers of Alimentary Canal Organs Figure 14.3