How about your stomach? (3)

Your stomach can hold a little over a quart of food, although this capacity varies among different people.  Primitive people we able to gorge themselves with enormous amounts of food because they were never sure when they’d eat again.  But don’t try it… you might be mighty uncomfortable.

Every day your stomach produces as much as 2 1/2 quarts of gastric juices to facilitate digestion.  You digest a meal in one to seven hours, depending on what and how much you eat.  When your stomach is empty, its muscles contract rhythmically.  These are “hunger pangs” you feel.  When it’s full, it contracts strongly three times per minute.  This helps break up the food and push it toward a valve at the lower end of your stomach called the pylorus.



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