The upper esophageal sphincter is the pharyngoesophageal sphincter and the lower esophageal - FinalQuiz FinalQuizThe upper esophageal sphincter is the pharyngoesophageal sphincter and the lower esophageal - FinalQuiz

Question

The upper esophageal sphincter is the pharyngoesophageal sphincter, and the lower esophageal sphincter is the gastroesophageal sphincter.
a. True
b. False

Answer

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