View The Digestive System Function Pictures. The liver is the heaviest and largest gland in the human body and is formed of four lobes. The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder).

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You have nerves that connect your central nervous system—your brain and spinal cord—to your digestive system and control some digestive functions. Liver function plays a serious role in digestion. The digestive tract (or gastrointestinal tract) is a long twisting tube that starts at the mouth and ends at the anus.

But have you ever wondered what would happen if some of those organs were eliminated, or if the sequence was.

The human digestive system is a complex physiological process that takes place in humans. The digestive system of a mammal consists of alimentary canal (digestive tract) and associated glands. What is the function of the digestive system? The mouth and the anus.