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JMT Digestive System
Question | Answer |
---|---|
Peristalsis | Rhythmic, wavelike, involuntary movement. |
Pharynx | throat |
bolus | food that is chewed and mixed with saliva |
rugae | mucus membrane of the stomach that contains folds |
villi | fingerlike projections |
hydrochloric acid | kills bacteria, changes pepsinogen into pepsin |
chyme | food mixed with gastric juices |
Duodenum | First 9-10 inches of the small intestine |
Esophagus | Muscular tube dorsal to the trachea, pathway for food |
Function of capillaries contained in the Villi | Absorb digested nutrients and carry them to the liver |
Produces cholesterol | Liver |
What do Lacteals do? | Absorb most of digested fats and carry them to the thoracic duct which release them to the circulatory system |
Pancreas | Produces pancreatic juices, insulin and glucagon |
Insulin and glucagon | regulate blood glucose levels, |
Bile | emulsifies fat, stored in the gallbladder, produced in the liver |
Heparin | Produced by the liver, prevents clotting of the blood |
Fibrinogen and Prothrombin | Produced by the liver, aid in clotting of the blood |
Vitamin K | Synthesized in the large intestine, aid in clotting |
Absorption of water and remaining nutrients | Large intestine |
What Vitamins are synthesized and absorbed in the large intestine | Some B complex vitamins |
Uvula | Prevents food from entering the nasopharynx |
The three salivary glands | Sublingual, submandibular, and Parotid |
Where does the digestive process start? | In the mouth |
The three sections of the small intestine in order. | Duodenum, Jejunum and Ileum |
What section of the small intestine is longest? | Ileum then Jejunum then Duodenum |
Detoxifies substances such as alcohol and pepticides | Liver |
Located under the liver | Gallbladder |
Located behind the stomach | Pancreas |
Storage area for indigestables and waste | The rectum |
Parts of the colon in order | Ascending, transverse, descending, sigmoid |
Anus | The final waste product is expelled |
Parts of the Alimentary Canal | Mouth, tongue, teeth, tongue, hard and soft palate,salivary glands, pharynx, esophagus, stomach, small intestine and large intestine |
Bony structure that forms the roof of the mouth | Hard palate |
Separates mouth from nasal cavities, posterior to hard palate | Soft palate |
Amylase | Enzyme secreted in the mouth begins break down of carbohydrates |
Prothrombin | Produced by the liver, aids in clotting of blood |
Heparin | Produced by the liver PREVENTS blood from clotting |
Fibrinogen | Produced by the liver, in the clotting of blood |
What section of the large intestine is connected to the ileum? | Cecum |
The cecum contains a small projection called the? | Appendix |
What section is longer the small intestine or large intestine? | Small approx. 20feet, large is approx 5 feet |
Sugar that is the main source of energy in the body | Glucose |
Sugar that is stored in the liver, broken down to glucose for energy | Glycogen |
Hormone produced by the Pancreas, triggers a rise in blood sugar levels | Glucagon |
What does the digestive systme produce to aid in clotting? | Liver produces Fibrinogen and Prothrombin, Large intestine synthesizes Vitamin K |
How does pepsinogen change to pepsin | Hydrochloric acid, produced by the parietal cells activates the pepsinogen to become pepsin |
Why would the inside of stomach appear smooth? | Because the rugae has disappeared to allow the stomach to increase in size |
What is the name of the sphincter between the stomach and the esophagus? | Esophogealgastric sphincter |
What is the name of the sphincter between the stomach and the duodenum? | Pyloric sphincter |