Excretory and Digestive Systems - Anatomy

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Question

Jen has been having issues digesting gluten throughout her life. Her doctors tell her that she has celiac disease, which is an autoimmune disease that is causing her immune system to attack the brush border of her                     , which then prevents absorption and causes illness when she consumes gluten.

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Answer

Celiac disease is an autoimmune response in which the body attacks the brush border of the small intestine and therefore prevents proper nutrient absorption. The small intestine's brush border is made of many small protrusions called villi and microvilli, which increase surface area in order to increase absorption area. Without these areas of absorption, the body cannot absorb a sufficient amount of necessary nutrients from the diet.

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