Fig. 6From: The morphology of the adrenal gland in the European bison (Bison bonasus)The adrenal gland in the European bison. Stain = H&E. a Cells of the zona reticulata of various shape and irregularly arranged form a network, Bar = 10 μm; b Numerous apoptotic cells (white arrow), Bar = 10 μm; c Blood-filled vessels, Bar = 100 μm; d Cells of the zona fasciculata with vacuoles (black arrow), Bar = 50 μm. ZR – zona reticularis, BV – blood vesselsBack to article page