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Microvilli are tiny finger-like projections that extend from the surface of certain cells, particularly in the lining of the small intestine. They increase the surface area of the cell membrane, allowing for more efficient absorption of nutrients.
The outer boundary of a cell that regulates what enters and exits.
Absorption: The process in which substances are taken up and incorporated into cells or tissues.
Intestine: A long tube-like organ in our digestive system where most nutrient absorption takes place.