The small intestine is a long, tube-like organ that connects the stomach to the large intestine. It is responsible for absorbing nutrients from food and plays a crucial role in digestion. It is divided into three sections: the duodenum, the jejunum, and the ileum.
- Duodenum: This is the shortest part of the small intestine, measuring around 10 inches. It receives food from the stomach and plays a key role in breaking down food with the help of digestive juices from the pancreas and liver.
- Jejunum: This section is about 8 feet long and is responsible for further digestion and absorption of nutrients, especially carbohydrates and proteins.
- Ileum: This is the longest part of the small intestine, measuring about 12 feet. It primarily absorbs vitamins, fats, and bile salts.
The small intestine's extensive surface area, created by folds and tiny projections called villi, enhances nutrient absorption.
