Term
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Definition
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Term
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Definition
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Term
| What are some innate intestinal protective mechanisms? |
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Definition
-competition for attachment
-Ig in colostrum & milk
-local immune response: IgA & IgM
-gut motility
-pathogen/toxin dilution w/ gut fluid secretion
-fluid absorption in the colon |
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Term
| What are some of the effects of enteric pathogens? |
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Definition
-toxic effect on epi cells = fluid loss
-direct destruction of cells
-local necrotizzing effects |
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Term
| What are the major pathogenic mechs of diarrhea? |
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Definition
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Term
| What do we see w/ secretory diarrhea? |
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Definition
-dilated fluid-filled intestines
-villi intact
-alkaline pH
-etiology: E. coli |
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Term
| What do we see w/ malabsorptive diarrhea? |
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Definition
-loss of intestinal epi
-undigested lactose = acidic pH
-mesenteric lacteals devoid of chyle
-viral or coccidian etiology |
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