The chyme enters the small intestine when the stomach is full. The small intestine is about 14 feet long. The first foot or so is the duodenum , where food arrives, and also where enzymes, bile, and base are delivered from pancreas and liver. These are taken up by microvilli and placed into epithelial cells. From there they move into blood vessels.
Fats are mixed with bile salts that break the large globules into smaller ones.
These are hydrolyzed by lipases to fatty acids, which are taken up by epithelial cells and resynthesized into triglycerides. These then are placed into the lymph, and from there go to blood vessels. Accessory Organs Pancreas Fig. The pancreas contains two types of cells, exocrine and endocrine. The secretions are released into the pancreatic duct, then to the duodenum.