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Active 7 months ago
The digestive system is composed of the gastrointestinal tract—commonly referred to as the GI tract or digestive tract—as well as the liver, pancreas, and gallbladder. The gastrointestinal system is made up of a succession of hollow organs connected by a long, twisting tube that runs from the mouth to the anus. The mouth, esophagus, stomach, small intestine, large intestine, and anus are the hollow organs that comprise the GI tract. The liver, pancreas, and gallbladder are the digestive system’s solid organs (NIDDK, 2019).
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columnar-epithelium-stomach
Function: Provides an impermeable barrier against any bacteria that could be ingested but is permeable to any necessary ions.