Term
| What are characteristics of pancreatic secretions? |
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Definition
1. Is secreted by acini and ducts
2. Secretes about 1 liter a day
3. Contains enzymes to digest protien, starch fat and nucleic acids (DNA, RNA) |
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Term
| Describe three digestions by pancreatic enzymes. |
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Definition
1. Protien Digestion
2. Starch Digestion
3. Fat Digestion |
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Term
| Describe protein Digestion? |
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Definition
*four proteolytic enzymes secreted as inactive proenzymes
*Porenzyems activated in duodenum
*enzymes digest protien and polypeptides to smaller peptide and amino acids. |
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Term
| Describe Starch digestion? |
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Definition
| *Starch not digested by salivary amylase in the mouth an stomach is digesed in intestine by pancreatic enzymes. Digested same as in mouth |
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Term
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Definition
Triglyccerides (fat molecules made of glycerol and three fatty acids) digested in sm. intestine by pancreatic lipase
*Digestion of each triglyceride yields a monoglyceride molecule and two fatty acid molecules.
*Bile from the gallbladder required for lipase to digest fat. |
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Term
| Describe digestion by intestinal enzymes? |
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Definition
| Responsible for most chemical digestion. Enzymes fro pancreas and small intestines complete digestion of protien, starch, disaccharide sugars and fats. |
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Term
| Intestinal Enzyme breakdown? |
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Definition
Disaccharidases digest disaccharides to monosaccharides.
Sucrose -> Sucrase -> Glucose + Fructose Maltose -> Maltase -> Glucose + Glucose Lactose -> Lactase -> Glucose + Galactose |
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Term
| Describe absorption in the small intestines? |
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Definition
| Uptake of all substances in absorptive cells then into blood and lymph |
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Term
| Villi and Microvilli are responsible in absorption of the small intestine how? |
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Definition
| They provide large surface area for absorption. |
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Term
| What is absorbed through the small intestines? |
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Definition
| most digested food, water, electrolytes, vitamins and other substances in the small intestine, |
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Term
| What is absorbed into blood? |
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Definition
| Monosaccharides, amino acids, water, electrolytes (sodium and potassium) and water soluble vitamins (Vitamin C and B) |
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Term
| What is absorbed through Lacteals? |
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Definition
| Fat soluble Vitamins and large fatty acids and monoglycerides. |
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Term
| List and describe functions of large intestine? |
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Definition
1. Feces formation by bacterial action
2. Limited digestion of undigested food by bacteria
3. Formation of Vitamin K and some B by bacteria.
4. Absorbtion of some water, electrolytes, vitamins and bile salts. |
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Term
| What are the functions of the liver? |
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Definition
1.Carbohydrate, lipid and protien metablolism
2. Removal of waste products such as bilirubin. 3. Storage of glycogen, vitamins and iron.
4. Phagocytosis by KUPFFER cells
5. Bile Secretion
6. Plasma Protien Synthesis
7. Detoxification of toxins such as alcohol. |
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Term
| Describe the functions of Bile? |
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Definition
1. Emulsification of fat in sm. intestines.
2. Excretion of bilirubin and cholesterol.
3. Aid in fat absorption. |
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Term
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Definition
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Term
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Definition
| plaque causes destruction of periodontal membrane and jaw bone with possible loss of teeth. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| acid reflux from stomach into esophagus |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| inflammation of liver, several types |
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Term
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Definition
| erosion of stomach/duodenal lining, usually caused by a bacterium |
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Term
| Another name for swallowing is? |
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Definition
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Term
| Pancreatic secretions contain an enzyme that will digest _____ |
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Definition
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Term
| What emulsifies fat so that it is easier to digest |
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Definition
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Term
| The movement of food along the digestive tract is called ______ |
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Definition
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Term
| What is the last part of the small intestine |
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Definition
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Term
| Rugae is found in the gall bladder and the _____ |
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Definition
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Term
| Brush border enzymes are located within the _____________of intestinal absorptive cells |
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Definition
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Term
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Definition
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Term
| Parietal cells secrete ________ |
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Definition
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Term
| Function of the Lesser Omentum |
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Definition
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Term
| What is the site of the most digestion and absorption? |
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Definition
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Term
| The liver can store iron T/F |
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Definition
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Term
| Lymph capillaries in villi are called |
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Definition
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Term
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Definition
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Term
| The enzyme that requires an acid pH is |
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Definition
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Term
| The __________ supports the liver |
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Definition
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Term
| What helps with the absorption into the intestional cells |
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Definition
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Term
| Fat (triglyceride) molecules made of ? |
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Definition
| Glycerol and three fatty acids |
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Term
| Fat is digested in small intestine by |
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Definition
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Term
| Micelles are required for |
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Definition
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Term
| Bile combined with digested fat forms? |
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Definition
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