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47 Cards in this Set
- Front
- Back
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- composed of lobes formed by plates of hepatocyrtes
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liver
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in the liver plates radiate around what ?
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the central vein
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what is located in the corner of the lobes of the liver?
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portal triad
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what is the three parts of the portal triad ?
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1. portal arteriole
2. portal venuale 3. bile duct |
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what does the portal arteriole supply ?
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rich blood to the hepatocites
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what dos the portal venuale supply ?
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caries blood from portal vein to sinasoids
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what is the space between the hepatocite plates ?
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sinisoids
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what travels through sinusoid ?
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arterial and venous blood
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where do kuppfer cells live ?
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in sinusoid of liver
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what carries blood to the liver ?
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portal vein
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what is the for main functions of hepatocites?
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1. produce bile
2. store glucose 3. store fat soluble vitamins 4. detoxify |
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what is the function components of bile ?
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1. bile salts
2. electrolights |
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what emulsifys fats?
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bile salts
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when bile sphincter is closed where is bile stored ?
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gall bladder
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when fatty chyme inter duodenum what stimulates gall bladder to contact ?
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intestinal hormone
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in the pancreas what is a cluster of cells surrounding a duct ?
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Acini
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what is the 4 major enzymes of the pancreas ?
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1. trypsin
2. amylase 3. lipase 4. nucleas |
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trypsin breacks down ?
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proteins
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amylasy breaks down
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starches
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lipases breaks down
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fats
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nucleases breaks down
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nucleotides
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islets of langerhans is in the _________
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pancreas
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in the pancreas alpha cells produce _______
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glucagon
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in the pancreas beta cells produce_________
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insulin
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the large intestine mostly absorbs what?
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water
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in the large intestine what is the two major jobs of the bacterial flora ?
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break down cellulose, and synthesize B complex vitamins and k vitamins
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carbohydrate digestion begin where? and with what?
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mouth , amylase
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where is the second step of chemical digestion of carbohydrates?
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small intestine
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the products of polysaccaride digestion in the small intestin is ________ |
oligosaccharides |
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how many monosacarides from an oligosaccharide?
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2-8
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what is used for final digestion of polysacarides into monosaccharides?
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brush border enzymes
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where dose protein digestion begin ? and with what
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in the stomach with pepsin
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what is the second step of chemical digestion of proteins ?
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in small intestine trypsin breaks polypeptides into smaller peaces
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what is the final step of chemical digestion of proteins?
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brush border enzymes remove 1 amino acid at a time
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where dose the lipid chemical digestion of fat take place ? |
in small intestine |
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what is the first step of digesting fat?
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bile salts emulsify the fat
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what is the final step in the digestion of fats ?
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lipases separates a triglicerdie into a monogliceride and 2 fatty acid chains
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how are most nutrients absorbed ?
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active transport
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how are proteins absorbed ?
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they are coupled with sodium transport
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how do most nutrients travel to the capillary blood ?
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diffusion
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bile salts and _______ attach to monoglicerdies and fatty acid chains
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lecithin
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when bile salts and lecithin attaches to fatty acid or monglicerides what is made ?
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micelles
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what can the center of micelles contain ?
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cholesteral and vitamins
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inside the cell what happens to the parts of the fat molecule ?
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re synthesized into a trigliceride
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where is the trigliceride combined with phospholipids and cholesteral ?
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in golgi apparatus
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what is the name of the combonation of a trigliceride + phospoholipid + cholesteral ?
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chylomicrons
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how dos a chylomicron travel after it leaves the epethelial cell? why?
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in the lymph to the blood, to large to pass through capillary walls
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