I was confused about some concepts about fat absorption: So after the pancreatic lipases act on the the micelles to break them down into fatty acids and glycerol, the fatty acid and glycerols enter the epithelial cells of the small intestine lining (enterocytes?), right? ok so once they are inside the small intesine cells (not in the lumen anymore) the triacylglyerides combine with apoproteins like albumin to form chylomicrons.. so from here on im confused about how the chylomicrons actually end up in the bloodstream, and once they are in teh bloodstream where do they go, and how are they stored/metabolized? I read somewhere that the chylomicrons are directly absobred in the blood stream, but I thought they had to go through the lacteals first to the thoracic duct? Can anyone clarify this, thanks! And also, does anyone know if the process of the fatty acids/glycerol entering the enterocytes involves active or passive diffusion? And once the chylomicrons are transported out of the enterocytes either directly to the blood stream (if that is even possible) or into lacteals, does that involve diffusion?