Liquid containing enzymes produced in your mouth to keep the mouth wet and to help prepare food for digestion by moistening and softening the ingested pieces.
One of many tiny finger-like structures on the inner surface of the small intestine which increase the surface area significantly to facilitate the absorption of nutrients.
An organ in the body where food is digested and where chyme is formed and stored before it moves on to be absorbed; the lining of this organ secretes hydrochloric acid and digestive enzymes.
An organ in the body that produces insuline (a chemical substance that controls the amount of sugar in the blood) and substances which help to digest food so that it can be used by the body.