ASGE Recognized Industry Associate (ARIA) Training Program OPEN | March 2023-Small and Large Intestine (in Health)

Video Transcription

Video Summary

The video focuses on the small intestine and the large intestine. The small intestine is about 20 to 25 feet long and is responsible for digestion, absorption of nutrients and water, and moving food along the GI tract. It is divided into three sections: the duodenum, jejunum, and ileum. The duodenum is the first section and receives stomach contents through the pylorus. The duodenum is important for the mixing of digestive juices from the liver, gallbladder, and pancreas. The jejunum is the middle section and is responsible for absorption of nutrients, while the ileum is the final section and absorbs bile salts and fat-soluble vitamins. The large intestine, or colon, is about 4 to 5 feet long and mainly absorbs water and electrolytes, as well as eliminates solid waste. It is divided into the cecum, ascending colon, transverse colon, descending colon, sigmoid, rectum, and anal canal. Peristalsis and muscle contractions help move contents through the large intestine. The rectum and anal canal have sphincters that control the release of stool.

Asset Subtitle

Neha Mathur, MD

Keywords

small intestine

large intestine

digestion

absorption

GI tract