How does the process of human digestion work?

The human digestive system is a complex network of organs and tissues that work together to break down food into nutrients that the body can absorb and use. The process of digestion begins in the mouth, where food is chewed and mixed with saliva, which contains enzymes that start to break down carbohydrates.

Next, the food travels down the esophagus and into the stomach, where it is further broken down by stomach acid and digestive enzymes. From the stomach, the partially digested food enters the small intestine, where most of the nutrients are absorbed into the bloodstream.

The small intestine is lined with tiny finger-like structures called villi, which help to increase the surface area available for absorption. The nutrients are then transported to the liver, where they are processed and stored for later use.

The remaining waste products are then passed into the large intestine, where water is absorbed and the waste is compacted into feces. The feces are stored in the rectum until they are eliminated through the anus during a bowel movement.

Overall, the digestive system is a crucial part of the human body's ability to maintain good health by providing the nutrients necessary for growth, repair, and energy production.