Muscle tone in the lower oesophagus is
belongs to book: MCQs & EMQs in Human Physiology|Ian Roddie, William F M Wallace|6th edition| Chapter number:-| Question number:249
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total answers (1)
belongs to book: MCQs & EMQs in Human Physiology|Ian Roddie, William F M Wallace|6th edition| Chapter number:-| Question number:249
total answers (1)
A. True The high-pressure zone indicates the ‘cardiac sphincter’.
B. True It prevents reflux of acid into the oesophagus.
C. False It is decreased and heartburn is common in pregnancy.
D. True This prevents reflux during gastric contractions.
E. False These reduce tone, suggesting that cholinergic nerves have a role in maintaining normal tone.
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