HISTOLOGIC FEATURES OF THE DOG’S MAMMARY GLANDS BLOOD SUPPLY

The purpose of this study was to establish and characterize the kinds and types of blood vessels microcirculationfrom parenchyma of the dog's mammary glands.The incoming blood vessels in mammary complexes and their branches in inter- and perilobular connectivetissue septs, as so the following smaller blood vessels in glandular parenchyma were investigated. Thesevessels presented on histological slides from bitches' mammary gland in diestrous cycle were obtained andprepared by conventional histological method and was observed. The samples were fixed in solution 10 %neutral formaldehyde, then cut by microtome at 7 μm and stained with Hematoxylin and Eosin.Myotypical arteries and arterioles in specific position as rosette were established in mammary teats andpostarteriolar capillaries as so venules and small myotypical veins in inter- and perilobular connective tissuesepts were observed. Capillaries decrease their number in correlation of glandular parenchyma involution.The established blood vessels morphologic features in bitches' mammary glands are important for glandularfunctional characteristic in norm and as so frequently happened pathological conditions, especially inmastitis and neoplasms.