Word for Digestion ACROSS 45. An inactive enzyme precursor which is activated in the stomach by HCl. 3. A chronic, inflammatory disease of the colon 49. A thick connective tissue layer containing nerves, characterized by ulceration and episodes of bloody blood vessels and small glands below the mucosa. diarrhea. 50.The largest internal organ of the body and major 4. The phase of gastric secretion that begins before blood chemical factory. any food reaches the stomach, by parasympathetic 52. Flask shaped cells located in the epithelial layer of reflexes caused by the smell, taste or thought of food. the duodenum that produce protective mucus. 8. Salivary glands on the floor of the mouth under the 54. A straight muscular tube that begins at the tongue, primarily mucous in type. termination of the sigmoid colon and ends at the anal 11. Salivary gland on the floor of the mouth on the canal. inside surface of the jaw, primarily serous in type. 55. The muscularis layer of the GI tract has one 12. Circular muscles in the pharynx that pull the walls smooth muscle layer that is arranged with the cell’s inward during swallowing. longitudinal to the long axis and the other layer has 13. The enzyme found in serous salivary secretion the cells arranged in a ___ pattern. that splits starch and glycogen into disaccharides. 58. The canal that extends from the end of the rectum 14. Distention of the rectal wall by feces acts as a to the anus. stimulus that initiates the ___ reflex. 59. A reflex that empties the stomach which is 17. The enzyme produced by the gastric glands in the triggered by an irritation or distention in some part of stomach that catalyzes the cleavage of large proteins the alimentary canal. into smaller protein chains. 60. A junction between the ileum and the large 18. The alternate contractions and relaxation of the intestine. longitudinal and circular layers of smooth muscle in 62.Outer most covering of an organ, which is not the GI tract. within serous membranes, consisting of connective 20. Glands that secrete digestive enzymes and mucus tissue from the area around the organ. into the oral cavity. 63. The tissue that is living, cellular and calcified 24. The process by which food substances are surrounding the pulp cavity of a tooth. changed into forms that can be absorbed through cell 64. A muscular tube about 9 meters long that passes membranes. through the body’s ventral cavity. 26. A complex organ located in the curvature of the 65. ___ factor is a glycoprotein that binds with vitamin duodenum composed of both endocrine and exocrine B-12 and makes it more readily absorbed in the ileum. tissue. 27. The acid that produces a low pH in the stomach between 1 & 3. 29. The tunic that consists of the peritoneum and a connective tissue layer. 31. A fancy word for heartburn. 32. A thin layer of bonelike material that encloses the root of a tooth, 35. Another term for “chew”. 37. The innermost tunic of the alimentary canal 38. A type of enzyme that catalyzes the digestion of lipids. 40. A hormone secreted by the duodenum in response to the presence of lipids which inhibits gastric secretion and mobility of the stomach. 41. An enlarged segment of the digestive tract in the left superior portion of the abdomen. 33. Minute projections of the cell membrane that Word for Digestion greatly increases the surface area of the villi. 34. A drug that stimulates the vomiting center of the medulla oblongata. 36. Following a meal an elevated amount of + bicarbonate ions are excreted in the urine due to H DOWN removed from the blood to produce HCl in the stomach. This is called an ___ tide. 1. Semifluid material of ingested food mixed with 39. The opening between the stomach & small secretions of the stomach. intestine is the ___ opening. 2. A membranous fold that connects the midline of the 42. The gall bladder stores a secretion from the liver tongue to the floor of the mouth. called ___. 3. Another name for the large intestine. 43. The alveolar ridges around the tooth are covered 5. Bile salts ____ fats, by reducing surface tension of by dense fibrous connective tissue & stratified fat globules, into smaller bits that are more easily squamous epithelium referred to as ___. digested and absorbed. 44. When the duodenum becomes filled with chyme it 6. The proximal end of the large intestine. stretches the intestine causing an ___ reflex which 7. Large folds produced in the stomach when it is sends parasympathetic impulses to the stomach empty. which inhibit peristaltic waves. 9. A peptic ___ is a condition in which stomach acid 46. A saclike structure on the inferior side of the liver and/or bacteria digest the mucosal lining of the GI that stores and concentrates bile. tract. 47. The tunic that consists of two layers of smooth 10. The region of the stomach nearest the esophageal muscle. opening. 48. A disease called mumps is an infection of these 13. External GI tract opening at end of the anal canal. salivary glands. 15. The cells located in the gastric glands that 50. A lymph capillary located in the villus. produce pepsinogen. 51. A small blind tube, containing lymph nodules, 16. Name given to mass of food mixed with saliva that attached to the cecum is called the ___ appendix. enters the pharynx. 53. A proteolytic enzyme in pancreatic juice that starts 17. The oral cavity is connected to the esophagus via with the letter “t”. the ___. 56. The multitude of fingerlike projections found in the 19. Part of the GI tract that leads from the pharynx to small intestine folds that contain cells of secretion and the stomach. absorption. 20. Acidity in the duodenum stimulates the hormone 57. A hormone produced by the stomach and ___ to be released into the circulatory system to inhibit duodenum that increases gastric secretion. the gastric secretions of the chief and parietal cells. 61. Extremely hard nonliving acellular substance 21. The right & left hepatic ducts unit to form a single covering teeth. ___ hepatic duct. 22. The ___ duct from the gall bladder joins the hepatic duct from the liver to form the common bile duct. 23. 3 or 4 times a day, large portions of the transverse and descending colon undergo several strong peristaltic contractions called ___ ___. 24. The region of the small intestine where the majority of digestion and absorption take place. 25. The longest section of the small intestines, also the middle section. 26. The ___ cells of the gastric glands, produce hydrochloric acid. 28. A major function of the liver, that renders harmful chemicals to less toxic or harmless. 30. The phase of gastric secretion which starts when the food enters the stomach, caused by parasympathetic impulses due to distention of the stomach wall and presence of secretagognes.