1. It is a common passage for food and air.
A. Anus
2. It functions as the exit point for fecal materials.
B. Pharynx
3. It is a muscular tube through which food
passes from the pharynx to the stomach.
C. Stomach
D. Esophagus
4. It is a muscular, elastic, pear-shaped organ
that stores the swallowed food, mixes the food
with the digestive juice it produces and conveys
its contents slowly into the small intestine.
E. Small Intestine
5. It is considered as the organ of complete
digestion and absorption because it secretes
the enzymes that change the food materials into
their simplest components.​