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  Which of the following is the correct sequence of regions of the small intestine, from beginning to end?  

  Villi (and microvilli)…..  

  BONUS #1:   A nonessential amino acid is one that (hint: opposite of essential)…..  

  Which is the layer of the serous membrane that directly covers the surface of internal organs?  

  Chemical digestion of proteins begins in the…..  

  The esophagus……  

  The gastroenterologist has just determined that you have a blockage in your jejunum and she will have to perform surgery, making a small incision in the wall to remove the obstruction.    Which tunic (layer) will be cut first?  

  BONUS #3:   The accumulation of large amounts of adipose tissue in the ________ that extends from the inferolateral surface of the stomach can form what is commonly called a “beer belly.”    

  BONUS #4:   Which of the following would likely be absorbed in the stomach?    

  Parasympathetic vagus nerve activity ________ release of pancreatic juice.