Then it is swallowed, passing through the oesophagus to the stomach.
3.

There it is acted upon, and a part of it digested by the gastric juice.
4.

It is then passed into the small intestine, where it is acted upon by the bile, the pancreatic fluid, and the intestinal juice.
5.

The digested food is then absorbed by the walls of the stomach and intestines.
6.

The greater portion of the food is next passed through the liver, where hurtful substances are removed.
7.