| A | B |
| tongue | moves food in the mouth and forms bolus |
| pancreas | makes digestive juices and squirts them into the small intestine as chyme passes through the pyloric sphincter |
| pancreas | produces a base to neutralize stomach acid |
| stomach | churns food with gastric juices |
| gastric juices | destroys bacteria, helps dissolve food, starts the chemical digestion of food, and turns the bolus of food into chyme |
| small intestine | chemically digests food, allowing nutrients to be absorbed through its lining. |
| rectum | pushes food out of the body through the anus |
| salivary glands | partially digests the food and lubricates the mouth, making it easier for bolus to be formed |
| pharynx | pushes food into the esophagus |
| esophagus | pushes food into the stomach |
| liver | makes bile |
| liver | converts monosaccharides to glycogen |
| liver | stores amino acids and fats |
| liver | converts amino acids and fats into monosaccharides when energy is needed |
| gall bladder | concentrates bile and squirts it into the chyme |
| large intestine | consolidates undigested food, absorbs water, and turns the resulting waste into feces |
| anus | opening through which feces exit |