| A | B |
|---|
| digestion | process that breaks down food into small molecules for absorption that can later be used by cells |
| chemical digestion | chemical reactions that break large food molecules into small molecules |
| mechanical digestion | chewing, mixing, or churning food |
| mouth | beginning of mechanical and chemical digestion |
| salivary glands | produce saliva to break down starches |
| tongue | moves food to back of mouth |
| esophagus | moves food to stomach with muscle contractions |
| liver | produces bile and other enzymes |
| stomach | uses hydrochloric acid and enzymes to break down food and turn into chyme |
| gall bladder | produces and stores bile |
| pancreas | produces insulin to control blood sugar levels |
| large intestine | absorbs water and turns undigested materials into solid |
| small intestine | breaks down fats by using bile and allows nutrients to be absorbed by the blood |
| rectum | end of large intestine and controls the release of semi-solid wastes |
| peristalsis | muscle contractions that move food through the digestive system |
