Audio Transcript Auto-generated
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Hi guys, this is Maya and Cassandra.
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And today we're gonna be talking about Crohn's disease.
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So, first,
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we're gonna be talking about the normal
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physiology of our small and large intestine.
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So, within the normal physiology of our G I tract,
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we have four layers within the walls.
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These include our mucosa, innermost layer,
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coating the lumen and that's made up of eps.
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Then we have our submucosa which is made
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up of our connective tissue along for flexibility.
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And then we have our muscularis
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layers, smooth muscle to help obtain parasols
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to move food downwards. And then we have our cros
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which is a layer of loose connective tissue on the outermost layer side.
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So now we're gonna talk about the small intestine.
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So the function.
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So the lining of our small intestine mucosa is
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barely specialized for maximizing digestion and absorption of nutrients.
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The lining is highly folded to form microscopic fingerlike projections called via
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which increase the surface area to help with absorption.
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These make up the brush border which help with the
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final stages of digestion through the release of enzymes.
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The lining also contains specialized groups of cells
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that produce chemicals which aid in digestion,
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provide immune defense and help hormones that control coordination of
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our digestion process of the intestine gallbladder and the pancreas.
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So we have components like the via
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micro
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villa
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and our Antero
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sites. We also have cells like our goblet cells which
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produce mucus, providing a protective layer. Our Antero
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sites are absorb
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cells so that absorbs things like water and nutrients.
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And then we also have our secretion of our
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bile and pancreatic juices which are secreted through our HEPA
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pancreatic duct.
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Then moving on to our large intestine.
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So if you can see in the photo, this is more of our large intestine. So it's the loins
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more so flat,
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doesn't have those projections since it doesn't contain any of the villa.
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Um
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and then the function of our large intestine.
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So when the large intestine receives chime from the small intestine,
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the food has been liquefied by the digestive process
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and most of the nutrients has been absorbed.
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The colon's job is to dehydrate what's left of the chime and form it into stool.
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It does this by slowly absorbing water and electrode
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lights as the muscle system moves the waste along.
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Meanwhile,
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bacteria living in our colon feeds on the
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waste and breaks it down further compelling,
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completing sorry, the chemical part of the digestive process
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and like the small intestine, it also contains, absorb, absorb
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cells like our Antero
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sites. So absorbing
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that last remaining content of water and electrolytes and then sey
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cells like our goblet cells secreting that protective layer of mucus.
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What is Crohn's disease?
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CD is a chronic inflammatory disease under the umbrella term,
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inflammatory bowel disease.