Despite its name, your small intestine is the longest section of the gastrointestinal tract, measuring about 22 feet long. Its inner lining is also impressively large, thanks to microvilli. These are the tiny, finger-like projections lining the wall of your small intestine.

The small intestine is about 5.5 metres (18 feet) long and folds many times to fit in the abdomen. Although it is longer than the large intestine, it is called the small intestine because it is narrower in diameter. The small intestine has three distinct regions – the duodenum, jejunum, and ileum.

2023年11月3日 · The small intestine is the longest part of the digestive system. It extends from the stomach to the large intestine and consists of three parts: duodenum, jejunum and ileum. The main functions of the small intestine are to complete digestion of food and to absorb nutrients.

2024年4月21日 · Anatomically, the small bowel can be divided into three parts: the duodenum, jejunum, and ileum. In this article, we shall examine the anatomy of the small intestine – its structure, neurovascular supply, and clinical correlations.

2024年5月22日 · The small intestine is made up of three parts—the duodenum (first part), the jejunum (middle part), and the ileum (end part). Though the colon and the large intestine are occasionally mistaken for one another, they are not the same organ.

Drawing of the small intestine showing the duodenum, jejunum, and ileum. Also shown are the stomach, appendix, large intestine, and rectum. The small intestine is a long tube-like organ that connects the stomach to the large intestine.

2023年9月4日 · Here we have mentioned a well-labeled diagram of the small intestine. The small intestine consists of three main sections or parts, that are: the Duodenum, Jejunum, and Ileum. These three segments or parts work together to further break down and absorb nutrients from the …

The small intestine is a long, highly convoluted tube in the digestive system that absorbs about 90% of the nutrients from the food we eat. It is given the name "small intestine" because it is only 1 inch in diameter, making it less than half the diameter of the large intestine.

2025年1月24日 · The small intestine is a long, coiled tubular organ in the digestive system that connects the stomach to the large intestine. It is the primary site for digestion and absorption of nutrients. The small intestine is divided into three segments: the duodenum, jejunum, and ileum, each specialized for different aspects of digestion and nutrient uptake.

Small intestine: An illustration of the small intestine with the duodenum, jejunum, and ileum labeled. The average length of the small intestine in an adult human male is 6.9 m (22 feet, 6 inches), and in the adult female 7.1 m (23 feet, 4 inches). It can vary greatly, from as short as 4.6 m (15 feet) to as long as 9.8 m (32 feet).