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31 Cards in this Set
- Front
- Back
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Pharynx connects the oral cavity to the |
esophagus |
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Esophagus is a long connecting tube from the |
pharynx to the stomach
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Esophagus is what kind of tissue? |
smooth and striated |
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Hiatal hernia |
part of the stomach becomes strangulated by the diaphragm |
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Lower Esophageal Sphincter connects the esophagus to the _____ and is made up of ring-like set of smooth muscles usually tightly closed unless food is passing or with ... |
stomach........... reflux of material |
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Fundus |
Cardiac Region (closest to the heart) |
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Stomach Body |
main part of stomach |
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Stomach Pylorus |
"antrum" - Lower Region, Closest to the duodenum
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Hormone production happens in what part of the stomach |
Pylorus or antrum
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Pyloric Spincter |
ring like smooth muscle separating the stomach from the duodenum controls reflux of material from the duodenum |
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Epithelial Cells |
Secrete mucus and water for protection and lubrication |
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G Cells or |
Antral Mucosa Cells |
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G Cells release the hormone .... Into the bloodstream in response to... |
gastrin..... protein |
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Gastrin binds to |
receptors on parietal cells in the stomach to secrete HCL |
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Parietal or Oxyntic Cells release |
HCL that is reposible for low pH in stomach Essential for the absorption of B12
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Chief Cells produce |
pepsinogen in response to protein coming into the GI tract |
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Pepsinogen is converted to pepsin in the presence of |
HCL |
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Pepsin is involved in the early stages of |
digestion |
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What are the functions of the Stomach |
1. Food Reservoir 2. Secretion of gastric "juice" 3. Churns Food 4.Intrinsic Factor Production 5. Absorption
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Gastric Juice includes |
mucus, HCl, H20, gastrin, pepsin, pepsinogen |
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Ruggae |
Helps to break down food |
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Small Intestine |
5 meters long - Duodenum, Jejunum, and ileum |
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What part of the small intestine absorbs B12? |
Ileum |
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What is the sphincter prevents retrograde movement from large intestine? |
Ileocecal junction |
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Proteases and peptidases changes protein to |
amino acids |
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Ingesta neutralizes with addition of |
bicarbonate |
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Absorption of end products follows what path? |
bloodstream-> hepatic portal system -> liver |
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Small intestine blood flow rises when food is |
present |
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Lipase changes fats to |
fatty acids
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Amylases changes large carbohydrates to |
monosaccharides/ disaccharides |
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Lactase changes lactose to |
Galactose and glucose |
