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The gastrointestinal system, also known as the digestive system, is a complex network of organs responsible for the digestion and absorption of food. It begins at the mouth, where food is chewed and mixed with saliva.
From the stomach, the partially digested food moves into the small intestine—the primary site of nutrient absorption. Here, enzymes from the pancreas and bile from the liver aid in breaking down carbohydrates, proteins, and fats. Tiny hair-like structures called villi in the small intestine absorb nutrients into the bloodstream.
The gastrointestinal system plays a vital role in maintaining overall health by supplying essential nutrients, supporting immunity, and managing waste elimination. Disruptions in this system can lead to various conditions such as ulcers, constipation, irritable bowel syndrome, and more. A balanced diet, hydration, and regular exercise are crucial for maintaining a healthy digestive tract.