Light micrograph of the epithelial cells lining the luminal spaces of a seminal vesicle. The epithelium forms complex infoldings within the luminal space (empty spaces are white in this image). There are also small capillaries containing red blood cells (bright red) beneath the epithelial cell lining. Haematoxylin and eosin stained tissue section. Magnification: 200x when printed at 10cm.