Digestive System - Structures and Functions 1
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Created by:
michaelturner Plus on May 18, 2011
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18 terms
Terms | Definitions |
|---|---|
 mucosa | Inner structure of alimentary canal wall its function is secretion and absorption |
| submucosa | This structure of the alimentary canal is were blood and lymph vessels; lymph nodules & nerve fibres are located |
| muscularis externa | This structure of the alimentary canal contains inner circular and outer longitudinal muscle layers |
| serosa | This structure of the alimentary canal contains a single layer of squamous epithelial cells that is the protective outer layer (visceral peritoneum) |
| 1/4 | GI system receives how much of cardiac output |
| coeliac trunk | Main Arterial branch for liver, stomach and spleen |
| superior and inferior mesenteric | Main Arterial branches for small & large intestine |
| mesenteric veins superior and inferior | The main Venous branches in GI System |
| hepatic portal vein | Vein that sends nutrient-rich blood from digestive viscera to the liver |
| to break down and absorb food for the body to use | The primary function of the GI System |
| 25cm | The approximate length of the oesophagus in an adult person |
| 25cm | The approximate length of the stomach in an adult person |
| 25cm | The approximate length of the duodenum in an adult person |
| 2.5mtrs | The approximate length of the jejunum in an adult person |
| 3.5mtrs | The approximate length of the ileum in an adult person |
| 1.5mtrs | The approximate length of the colon (large intestine) in an adult person |
| Enteric and Autonomic | Nervous systems that serve the function of the GI tract |
| histamine | Paracrine agent that is important in the GI system function |
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