The small intestine is a long, coiled tube in the digestive system that connects the stomach to the large intestine. It plays a crucial role in breaking down food and absorbing nutrients. The small intestine is divided into three parts: the duodenum, the jejunum, and the ileum. Each section has specific functions that help digest food and extract essential vitamins and minerals. As food moves through the small intestine, it mixes with digestive juices from the pancreas and liver, which aid in the breakdown of fats, proteins, and carbohydrates. The walls of the small intestine are lined with tiny finger-like projections called villi, which increase the surface area for nutrient absorption. This process is vital for providing the body