The human digestive system breaks down food into smaller components, allowing nutrients to be absorbed into the bloodstream. It begins in the mouth, where food is chewed and mixed with saliva, then travels down the esophagus to the stomach. In the stomach, food is further broken down by stomach acids and enzymes before moving to the small intestine, where nutrients are absorbed.
The large intestine absorbs water and forms solid waste, which is then excreted through the rectum. This intricate system involves various organs, including the liver, pancreas, and gallbladder, which produce essential digestive enzymes and bile. Without this complex system, the body would not be able to receive the nutrients it needs to function properly.