HUMAN

Salivary glands

glands in the cheeks and under the tongue which produce saliva to moisten food that is chewed. Salivary glands also secrete enzymes which breaks down starches in the mouth.

Esophagus

muscular tube which creates peristaltic waves to carry swallowed food from the throat to the stomach.

stomach

muscular organ which churns food and secretes enzymes and acids for food digestion.

small intestine

hollow tract where chemical digestion continues and nutrients are absorbed into the bloodstream

pancreas

organ which secretes enzymes for starch and protein digestion into the small intestine.

liver

organ which processes digested food into useful substances for the body, secretes bile for fat digestion, and removes toxins from blood.

gall bladder

storage sac for bile located on the lower surface of the liver

colon

main part of the large intestine which absorbs water from indigestible food.

rectum

final section of the large intestine which eliminates waste material from the body.