Gastrointestinal system.

@article{Cheng2010GastrointestinalS,
  title={Gastrointestinal system.},
  author={Leo K. Cheng and Gregory O'Grady and Peng Du and John U. Egbuji and John Albert Windsor and Andrew J. Pullan},
  journal={Wiley interdisciplinary reviews. Systems biology and medicine},
  year={2010},
  volume={2 1},
  pages={65-79}
}
The functions of the gastrointestinal (GI) tract include digestion, absorption, excretion, and protection. In this review, we focus on the electrical activity of the stomach and small intestine, which underlies the motility of these organs, and where the most detailed systems descriptions and computational models have been based to date. Much of this discussion is also applicable to the rest of the GI tract. This review covers four major spatial scales: cell, tissue, organ, and torso, and… CONTINUE READING