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Medical Terminology
Chapter 5 & 6 - Digestive System Terms
| Term | Definition |
|---|---|
| absorption | passage of materials through to walls of the small intestine into the bloodstream |
| amino acids | small building blocks of proteins; released when proteins are digested |
| amylase | enzymes secreted by the pancreas and salivary glands to digest starch |
| anus | terminal end of opening of the digestive tract to the outside of the body |
| appendix | blind pouch hanging from the cecum |
| bile | digestive juice made in the liver and stored in the gallbladder |
| bilirubin | pigment released by the liver in bile |
| bowel | intestines |
| canine teeth | pointed teeth next to the incisors |
| cecum | first part of the large intestine |
| colon | consists of the ascending, transverse, descending, and sigmoid segments |
| common bile duct | carries bile from the liver and gallbladder to the duodenum |
| defecation | elimination of feces |
| deglution | swallowing |
| dentin | primary material found in teeth |
| digestion | breakdown of complex foods to simpler forms |
| duodenum | first part of the small intestines |
| elimination | act of removal of materials from the body |
| emulsification | physical process of breaking up fat globules |
| enamel | hard, outermost layer of a tooth |
| enzyme | chemical that speeds up reactions between substances |
| esophagus | tube connecting the throat to the stomach |
| fatty acids | substances produces when fats are digested |
| feces | solid wastes; stool |
| gallbladder | small sac under the liver; stores bile |
| glucose | simple sugar |
| glycogen | starch; glucose is stored in the form of glycogen in liver cells |
| hydrochloric acid | substance produces by the stomach; necessary for digestion of food |
| ileum | third part of the small intestines |
| incisor | on of four front teeth |
| insulin | hormone produces by endocrine cells of the pancreas; |
| jejunum | second part of the small intestine |
| lipase | pancreatic enzyme needed to digest fats |
| liver | large organ located in the RUQ of the abdomen |
| lower esophageal sphincter (LES) | ring of muscles between esophagus and stomach |
| mastication | chewing |
| pancreas | organ under the stomach; produces insulin and anzymes |
| papillae | small, nipple-like elevations on the tongue |
| parotid glands | salivary gland within the cheek, just anterior to the ear |
| peristalsis | rhythmic contractions of the tubular organs |
| pharynx | throat, |
| portal vein | large vein bringing blood to the liver from the intestines |
| protease | enzyme that digests protein |
| pyloric sphincter | ring of muscles at the end of the stomach |
| pylorus | distal region ofthe stomach |
| rectum | last section of the large intestine, connecting the end of the colon and the anus |
| rugae | ridges on the hard palate and the wall of the stomach |
| saliva | digestive juice produced by salivary glands |
| salivary glands | parotid, sublingual, and submandibular glands |
| sigmoid colon | forth and last segment of the colon |
| sphincter | circular ring on muscle that constricts a passage or closes a natural opening |
| stomach | muscular organ that receives food from the esophagus |
| triglycerides | fat molecules composed of three parts fatty acids and one part glycerol |
| uvula | soft tissue hanging from the middle of the soft palate |
| villi | microscopic projections in the wall of the small intestine that absorb nutrients into the bloodstream |