Explain malabsorption and give an example
What will be an ideal response?
Malabsorption (impairment of absorption) may be caused by damage to or reduction of the surface area of the small intestine. One of the most common causes is gluten enteropathy, also known as celiac disease. In this condition, the person's small intestine is abnormally sensitive to gluten, a protein constituent of wheat, barley, and rye. This condition is a complex immunological disorder in which exposure to gluten erroneously activates a T-cell response that damages the intestinal villi. The normally luxuriant array of villi is reduced, the mucosa becomes flattened, and the brush border becomes short and stubby, which negatively impacts intestinal absorption.
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RBC is the abbreviation for ________
A) Red blood cells B) Red and blue circulation C) Ruptured blood clot D) Really bad cut
Structurally, the plasma membrane
A) contains no imbedded proteins. B) separates the chromatin from the cytoplasm in eukaryotes. C) contains carbohydrate molecules only. D) is nonporous. E) is composed of a bilayer of lipids.
The hyoid bone is unique because it ________.
A) is the only bone of the body that does not articulate with any other bone B) is shaped like a plow C) is covered with mucosa D) has no specific function
What activates memory cells?
A) An encounter with an antigen B) An encounter with mast cells C) Cells that have undergone partial differentiation D) Stem cells