May 15, 2015. (Photo provided by Stephen Ayers, architect of the Capitol) As architect of the Capitol, Stephen Ayers oversees 2,300 employees responsible for the maintenance and operation of the historic U.S. Capitol Building, the House and Senate office buildings, the Library of Congress and the Supreme Court.
Functions of the small intestine. The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food. Digestion involves two distinct parts.
Absorption is the movement of digested food molecules through the wall of the intestine into the blood or lymph. The small intestine is the region where digested food is absorbed. Most absorption happens in the ileum. This is the longest part of the small intestine and is between 2-4 metres long. The small intestine has a large internal surface area for absorption to happen quickly and efficiently.