Abstract
The gastrointestinal tract constitutes an uninterrupted channel through the organism with separate ports for intake and output. This chapter deals first with the basic structure of the wall of the alimentary conduit and with the modifications encountered in each of the various organs, with emphasis on basis anatomy and morphology of the system for a better understanding of the mechanical (motility, distensibility and flow) function and mechanosensory function.
Keywords: Anatomy, esophagus, gastrointestinal tract, large intestine, small intestine, sphincters, stomach, structure.