| A | B |
| defecation | the discharge of feces from the body |
| mastication | first stage of digestive system, chewing |
| peristalsis | the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward.. |
| chyme | thick, heavy, creamlike liquid-semisolid mixture of food and gastric juices cardiac region |
| fundus | holds the food as it first enters the stomach |
| pylorus | funnel-shaped terminal end of the stomach |
| pyloric sphincter | region where chyme must pass through in order to travel on to the small intestine |
| gastric glands | gastric pits in the columnar epithelial lining of the stomach as well as to how the food toward the pyloric sphincter through the muscle activity |
| duodenum | first part of small intestine where the intestinal phase of gastric juice regulation |
| gastroesophageal reflux disease (GERD) | another name for heartburn. When acidic stomach contents squirt back through the lower esophageal sphincter and into the esophagus |
| peptic ulcers | result of a breakdown of the mucosal membrane fund in the esophagus, stomach, or small intestine |
| gastritis | initial erosion of the mucosal lining and leads to the inflammation |
| jejunum | middle section, and is about 2.5 meters long |
| ileum | terminal end of the small intestine |
| disaccharides | contained in starches; double sugars |
| peptidase | need to digest peptides |
| villi | fingerlike protrusions into the lumen; on wall |
| cecum | receives any undigested food and water from the ilium of the small intestine |
| rectum | opens to the anal canal, which leads to the anus that relaxes and opens to allow the passage of solid waste (feces) |
| flatulence | production of gas |