Like all teenagers, Kesha wanted to fit in and look attractive to boys. She had tried to diet, but every diet failed. She was an
gry at herself for not dieting, so she ate everything in sight. Then she'd go to the bathroom and vomit. Kesha hid food in her room and would eat it at night when the family had gone to bed. She always vomited afterward. She also took laxatives regularly. What disorder does Kesha suffer from?
Answer: on the exposed surfaces of epithelial cells? Microvilli increase the surface area of the cell, usually for absorption. The cells lining the small intestine have microvilli for that purpose. Cilia wave around to help move the external medium.