For example, while the median pay for RNs in California is $46.38/hour, or about $96,470/year, RNs in the modest 51,000-resident city of Watsonville, CA, typically make more than $65/hour, or about $136,570 per year.
Best Answer: The small intestine incorporates three features which account for its huge absorptive surface area: 1.Mucosal folds: the inner surface of the small intestine is not flat, but thrown into circular folds, which not only increase surface area, but aid in mixing the ingesta by acting as baffles. 2.Villi: the mucosa forms multitudes of projections which protrude into the lumen and are covered with epithelial cells.
In the small intestine, villi are folds of the mucosa that increase the surface area of the intestine. The villi contain a lacteal, a vessel connected to the lymph system that aids in the removal of lipids and tissue fluids. Submucosa. 2  Muscular layer. 3  Serosa (if the tissue is intraperitoneal) / Adventitia (if the tissue is retroperitoneal) -- these last two tissue types differ slightly in form and function according to the part of the gastrointestinal tract they belong to (see the section below for more detail).