The human digestive system is a complex series of organs and glands that processes food and liquids. In order to use the food we eat, our body has to break the food down into smaller molecules that it can process; it also has to excrete waste.
Most of the digestive organs (like the stomach and intestines) are tube-like and contain the food as it makes its way through the body. The digestive system is essentially a long, twisting tube that runs from the mouth to the anus, plus a few other organs (like the pancreas and liver) that produce or store digestive chemicals.
Cancer, cell signaling, oncology, vascular endothelial growth factor (VEGF).
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