Welcome to Part 1 of our two part series on the digestive system. The digestive system includes the GI tract and GI organs. The tract starts at the mouth and runs down the esophagus into the stomach, through the small intestine, large intestine, and finally out of the body. The GI organs include the liver, gallbladder and pancreas. In this webinar, we will go through the biology and anatomy of the system. In addition, we will cover topics that the MCAT likes to test about each section of the digestive system, such as bypass surgery, and H.pylori infections in the stomach, as well as the microbiota in the large intestine.