A 56-year-old man complains of increasing difficulty swallowing over the past 3 years. A radiograph taken after swallowing barium shows a distended esophageal body. A manometric study supports the...

Extracted text: A 56-year-old man complains of increasing difficulty swallowing over the past 3 years. A radiograph taken after swallowing barium shows a distended esophageal body. A manometric study supports the diagnosis of achalasia. Which of the following correctly describes the physiological changes associated with achalasia after swallowing? Increased tone of Decreased UES Decreased Increased Incomplete or peristalsis in peristalsis in tone of LES absence of LES upper esophagus mid and relaxation lower esophagus A. 8. C. D. Yes Yes No Yes Yes Yes Yes Yes Yes No No No No No No No No Yes Yes Yes E. NO No Yes No No O A C D O E