Surgery Which of the following is true about esophagus except: A Serosa not present B Middle & lower third made up of striated muscle C Lower oesophageal sphincter is a zone of relatively high pressure D In achalia cardia LOS tone is increased so that food can not pass below 💡 Explanation Which of the following is true about esophagus except: ✓ Correct Answer: B. Middle & lower third made up of striated muscle