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Ch 8 Gastroenterolog
Esophagus and Stomach
| Question | Answer |
|---|---|
| small area where the esophagus enters the stomach | cardia |
| partially digested food, saliva, and digestive enzymes in the stomach and small intestine | chyme |
| flexible, muscular tube that moves food from the pharynx to the stomach | esophagus |
| rounded, most superior part of the stomach | fundus |
| muscular ring at the distal end of the esophagus. it keeps food in the stomach from going back into the esophagus (LES) | lower esophageal sphincter |
| contractions of smooth muscle that propel a bolus of food, and then chyme, waste products, and water through the gastrointestinal tract | peristalsis |
| muscular ring that keeps chyme in the stomach or opens to let chyme into the dudodenum | pyloric sphincter |
| narrowing area of the stomach just before it joins the duodenum. it contains the pyloric sphincter | pylorus |
| deep folds in the gastric mucosa that expand to accommodate food | rugae |
| organ of digestion between the esophagus and small intestine. its areas are: cardia, fundus, body and pylorus. secretes hydrochloric acid HCL, pepsinogen and gastrin. secretes intrinsic factor to absorb vitamin B12 | stomach |
| esophag/o- | esophagus |
| stal/o- | contraction |
| pylor/o- | pylorus |
| gastr/o- | stomach |