Figures 353 (upper) and 354 (lower) from Chapter 15 (Cytoplasmic Inclusions) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Glycogen deposits tend to accumulate in dense regions, such as shown in these sections from guinea pig rete testis, and are generally excluded from the cell center and Golgi region. Image from Fawcett and Dym, J. Reprod. Fertil., 38:401-409, 1974. A PDF copy of the accompanying chapter is available on the ASCB's BioEDUCATE website.