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    Exam 20: The Gastrointestinal System
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    Which Sphincter Is Composed of Skeletal Muscle Between the Pharynx
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Which Sphincter Is Composed of Skeletal Muscle Between the Pharynx

Question 171

Question 171

Multiple Choice

Which sphincter is composed of skeletal muscle between the pharynx and esophagus?


A) sphincter of Oddi
B) pyloric sphincter
C) upper esophageal sphincter
D) lower esophageal sphincter
E) external anal sphincter

Correct Answer:

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