Figure 180 from Chapter 5 (Endoplasmic Reticulum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Electron micrograph of a rat intestinal epithelium cell during absorption of a fatty meal. Droplets of lipid accumulate in the lumen of the smooth endoplasmic reticulum (arrows). Image by Sanford Palay. A PDF copy of the accompanying chapter is available on the ASCB's BioEDUCATE website.