• The Digestive System: The major organs of this system are the mouth, esophagus, stomach, and small and large intestine, while the secondary organs are the liver, pancreas, salivary glands, and the gall bladder.

The digestive system's primary role is to turn substances coming into the body such as through food and water into fuel for its cells. This process is called metabolism, and is part of the larger, more comprehensive digestive process.

#Human_Body_System