Main Parts of Human Digestive System (With Diagram)

The following points highlight the two main parts of human digestive system. The parts are: 1. Alimentary Canal 2. Digestive Glands. Part # 1. Alimentary Canal: It comprises the following parts: I. Mouth: Human mouth consists of two parts. (a) Vestibule: The vestibule is a slit-like space bounded externally by lips and cheeks and internally by the gums and teeth. [...]