The adult human esophagus is an 18- to 25-cm long muscular tube that has cervical, thoracic, and abdominal parts. The esophagus wall is composed of striated muscle in the upper part, smooth muscle in ...

Part 4 in this six-part series on the GI tract described the anatomy and function of the small intestine. Part 5 describes the anatomy and functions of the large intestine, as well as common ...

This article – the fifth in a six-part series describes the physiology and functions of the large intestine, the last portion of the gastrointestinal tract, as well as common conditions of both the ...