Select the Statement/s That Best Describe the Properties of the Gastrointestinal

Select the statement/s that best describe the properties of the gastrointestinal (GI) tract.

A) The omentum is a double layer of fatty peritoneum attached along the concave margin of the stomach.
B) The GI tract creates a complex microbiologic ecosystem to support and maintain essential life-sustaining digestive and protective functions.
C) The nerve supply of the esophagus is from branches of the vagus nerve and the sympathetic nervous system.
D) The function of the esophagus is dependent on gravity.
E) The longest part of the GI tract is the small intestine which begins at the pylorus and ends at the ileocecal valve.