Physicians and surgeons have demanding education and training requirements. Almost all physicians complete at least 4 years of undergraduate school, 4 years of medical school, and, depending on their specialty, 3 to 8 years in internship and residency programs.lmost all physicians complete at least 4 years of undergraduate school, 4 years of medical school, and, depending on their specialty, 3 to 8 years in internship and residency programs.
The throat and esophagus. As seen in the picture, the mouth is connected to the stomach through the throat and the esophagus.
Esophageal Stricture. The esophagus is a relatively simple tubular structure connecting the throat to the stomach. The major functions of the esophagus are to transport food from the mouth to the stomach and to prevent regurgitation of food and gastric contents from the stomach back up into the esophagus.