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8. Antibodies that act against a particular foreign substance are released by ________.        

36. Peristaltic waves are ________.        

4. The process by which simpler chemical units pass through the lumen of the gastrointestinal tract into the blood or lymph.        

20. Which of the following is the best illustration of the difference between metabolism and digestion?        

27.  All of the following are true of swallowing (deglutition) except one. Select the statement that is NOT true of swallowing.        

5.  The relatively unchanging pressure in a filling stomach is due to the contraction of the stomach oblique muscle layer.

13. What is a bubo?        

23.  Which of the following is the best explanation of the benefit in the digestive system having the largest collection of lymphoid tissue (MALT) at the distal end of the small intestine?        

44. Nervous control of gastric secretion is provided by ________.        

39. Digestion and absorption of which of the following would be affected the most if the liver were severely damaged?