Which of the following consists of skeletal muscle tissue? upper esophageal sphincter pyloric sphincter internal anal sphincter external anal sphincter lower esophageal sphincter
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The upper esophageal sphincter is a circular muscle located at the top of the esophagus that helps prevent food and stomach acid from flowing back into the throat. This sphincter is made up of skeletal muscle tissue. The pyloric sphincter is a circular muscle Show more…
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