Licht- und elektronenmikroskopische Untersuchungen der Samenblasendrüse (Glandula vesicularis) des Bullen

Light and electron microscopical study of the vesicular gland of the bull
The vesicular glands of six adult bulls were studied grossly and with the microscope. Corrosion casts (of the duct system) examined with the dissecting microscope and the SEM clearly showed that the gland was tubulo-alveolar.
The light microscope showed two rows of tall glandular cells. The basal epithelial cells (termed "dwarf lipid-cells") contained uni- as well as plurivacuolar lipid droplets. In the tall glandular cells fine lipid droplets were seen mainly in the supranuclear cytoplasm.
Electron microscopical examinations permit division of the tall glandular cells into three compartments, shown in a semischematic drawing. The results of this study allow the conclusion that the basal "fat cells" and the peroxysomes of the tall glandular cells are related to the formation of prostaglandins.