9. How long is the small intestine in an adult? a. 22 feet b. 30 inches c. 30 feet d. 17 feet
The small intestine is about 18 feet (6.5 meters) 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.
