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.
Trachea: Definition : It is the passage between the pharynx and the stomach. Membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi. Purpose: Connects mouth to the stomach. Connects pharynx and larynx to the lungs. Importance: The central part of the human digestive system.