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23. The thin segment of the nephron loop’s descending limb ________.        

20. Identify the axillary nodes.

28.  When we ingest large molecules such as lipids, carbohydrates, and proteins, they must undergo catabolic reactions whereby enzymes split these molecules. This series of reactions is called ________.        

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?