Mention two structural features of small intestine which add to the absorptive capacity.

Structure facilitating absorption in small intestine:

1. Elongated structure of small intestine: Small intestine is an elongated structure containing the three parts: duodenum, jejunum and ileum, which allows the absorption of food throughout the region.
   
2. Presence of villi: The presence of villi and microvilli on the wall of the small intestine increases the surface area.
   
3. This increases ​the chances of absorption of food through the walls of the intestine.