1.2 Intestinal mucosa and digestion

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  • Created by: egreen94
  • Created on: 04-10-20 17:47
What is the name of the sphincter leading to large intestine
ileocecal
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What are the valves of kerckring
large circular projections of mucosa in the lumen
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What are the cells called which make up villi
enterocytes
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what is the central lymphatic vessel called
lacteal
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How many microvilli does an enterocyte have
200-4000
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What is the purpose of the lacteal
nutrient transport
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By how much do the microvilli increase surface area
x30
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What 3 things happen every 48hrs in intestinal wall cells
All
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What is the benefit of a large surface area
More efficient nutrient absorption
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What is hydrolysed in the intestinal phase of digestion
Starch, disaccharides, fat, protein, dipeptides, tripeptides
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How is starch digested
catalysed by amylase secrete from pancreas
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What is digested at luminal surface of intestinal mucosal cells
disaccharides
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What 3 things does the pancreas secrete to catalyse fats
lipase, phospholipase, esterase
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What catalyses protein digestion and where from
peptidases from pancreas and small intestine
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Where are di/tripeptide hydrolysed
brush border membrane of microvilli
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Card 2

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What are the valves of kerckring

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large circular projections of mucosa in the lumen

Card 3

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What are the cells called which make up villi

Back

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Card 4

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what is the central lymphatic vessel called

Back

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Card 5

Front

How many microvilli does an enterocyte have

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