Multiple Choice
Which of the following causes heartburn?
A) the pyloric sphincter remaining too tightly closed
B) the gastroesophageal sphincter remaining a little open
C) the pyloric sphincter remaining a little open
D) the gastroesophageal sphincter remaining too tightly closed
Correct Answer:
Verified
Correct Answer:
Verified
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Q58: Figure 39.4<br><br> <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2277/.jpg" alt="Figure 39.4