Food chewed and mixed with saliva, then swallowed
Digestion is completed. The resulting small food molecules pass through the walls of the digestive system into the blood--they are absorbed.
The food is mixed with hydrochloric acid and enzymes.
Water is taken back here.
when we swallow, a ball of chewed-up food passes from the mouth into this tube and down to the stomach
this adds enzymes to help further digestion in the small intestine
This adds bile which breaksup fat globules and neutralises acid.