Term
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Definition
| Joins the mouth and the oesophagus. Has two layers of skeletal muscle |
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Term
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Definition
| Inner tunic of the GI tract. Secretes mucus, digestive enzymes and hormones, absorbs end-products of digestion and protects against infectious disease |
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Term
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Definition
| 2nd tunic of the GI tract. Dense CT containing blood vessels, lymphatics and nerve plexus. |
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Term
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Definition
| 3rd tunic of the GI tract, consists of two layers of muscle. Inner circular layer and outer longitudinal layer |
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Term
| Serosa (Visceral peritoneum) |
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Definition
| Areolar CT, attaches and anchors gut |
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Term
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Definition
| Allows food from stomach into duodenum |
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Term
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Definition
| Conects oesophagus to stomach |
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Term
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Definition
| Connects ilium to large intestine |
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Term
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Definition
| Enzyme that disgests starch |
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Term
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Definition
| Located below stomach epithelium, secrete mucus |
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Term
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Definition
| Located below stomach epithelium, secrete HCl and intrinsic factor |
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Term
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Definition
| Used for absorbtion of B12 in SI |
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Term
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Definition
| Located below stomach epithelium, secrete pesinogen |
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Term
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Definition
| Also called G-cells. Located below stomach epithelium, secrete hormones |
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Term
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Definition
| Contains bicarbonate ions that nutralise HCl, prevents stomach from digesting itself. |
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Term
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Definition
| Mix contents and squirt about 3 ml of liquid chyme through pyloric sphincter into duodenum. (3 per minute) |
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Term
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Definition
| Pepsinogen is a peptin precursor, converted in the presence of HCl |
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Term
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Definition
| An enzyme that converts protein to poly-peptides |
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Term
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Definition
| First phase of gastric secretion - idea of food trigers increased gastric secretion |
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Term
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Definition
| Second phase of gastric secretion. Stomach distention increases secretion. Peptides, caffein and rise in pH stimulate the release of gastrin. |
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Term
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Definition
| A hormone that promotes gastric secretion |
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Term
| Excitatory Intestinal Phase |
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Definition
| Food entering duodenum stimulates secretion of intestinal gastrin |
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Term
| Inhibitory Intestinal Phase |
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Definition
| Distention of the duodenum and presence of chyme trigers endogastric reflex, resulting in the tightening of the pyloric sphincter and decrease in gastric secretion. |
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Term
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Definition
| Hormone that inhibits gastric seceretion and stimulates the release of bile and pancreatic juice |
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Term
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Definition
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Term
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Definition
| Small-fingerlike projections in the small intestine |
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Term
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Definition
| Lymphoid nodules in the submucosa of the small intestine |
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Term
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Definition
| Water-soluable, protien coated triglycerides, formed from FFA & Monoglycerols |
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Term
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Definition
| Main cells of the liver, formed into 6-sided lobules. |
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Term
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Definition
| Blood vessels found in the liver |
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Term
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Definition
| Macrophages found in the sinusoids of the liver |
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Term
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Definition
| Brown pigement in bile, formed from broken-down red blood cells |
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Term
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Definition
| Small, muscular sac that stores bile, when the duct is closed and bile backs up. |
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