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HSCI exam part 2 w/kayla

Terms in this set (14)

-Villi- nipple like (multiples = villies ) finger like projections
-Micro villias - smaller items
-Sphincter -A ring of muscles around a natural opening, like a valve regulating inflow and outflow.
-Digestion or the breaking down of food into small molecules that will be absorbed into our bloodstream begins when you put food in your mouth and begin to chew.
-Human saliva is 99.5% water, while the other 0.5% consists of electrolytes, mucus, glycoproteins, enzymes, and antibacterial compounds such as secretory IgA and lysozyme
-The pH of gastric acid is 1.5 to 3.5 in the human stomach lumen
-he small intestine can be divided into 3 major regions: ---> The duodenum is the first section of intestine that connects to the pyloric sphincter of the stomach. It is the shortest region of the small intestine, measuring only about 10 inches in length. Partially digested food, or chyme, from the stomach is mixed with bile from the liver and pancreatic juice from the pancreas to complete its digestion in the duodenum.
The jejunum is the middle section of the small intestine that serves as the primary site of nutrient absorption. It measures around 3 feet in length.
The ileum is the final section of the small intestine that empties into the large intestine via the ileocecal sphincter. The ileum is about 6 feet long and completes the absorption of nutrients that were missed in the jejunum.
-Lupin (sometimes called "lupine") is a legume belonging to the same plant family as peanuts. "For many people, eating lupin or a lupin-derived ingredient, such as a flour, is safe," says Stefano Luccioli, M.D., a senior medical advisor at the Food and Drug Administration (FDA). "But there are reports in the medical literature of allergic reactions to lupin, some of which can be severe."