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Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454
ISSN 2500-3399
ПИ №ФС77-57454
CONSTRUCTIVE FEATURES OF THE MICROVASCULATURE OF THE PAROTID AND MANDIBULAR SALIVARY GLANDS IN DOGS IN THE EARLY STAGES OF POSTNATAL ONTOGENESIS
Goncharov A.G. 1
1 The state budgetary university of higher professional education “Orenburg State agrarian University”
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The analysis of the relationship of structural and functional development of the blood vessels of the riverbed and physiological activity of the parotid and mandibular salivary glands in dogs. Clarified that the microcirculation of the parotid and mandibular glands has a reticular network construction of two types - contour formed by groups of trunk arterioles and venules and lying in the trunk hinges - internal capillary. In the parenchyma glands are less vascular areas, which is probably a consequence of the reduction of the backbone network of microvessels because the local weakening hemo-tissue metabolism in a physiologically static for the glands periods, also, in the peripheral parts of the body in the glandular tissue meet local avascular areas. It is noted that in newborn puppies dogs in the parenchyma of the mandibular salivary gland hemo-tissue microcirculation significantly more than in the parenchyma of the parotid salivary gland, and arterio-venous contrast ratio is much lower, which is a consequence of earlier development and active functioning of the mandibular gland. On the contrary, at the time of the transition to solid food network has the highest density hemo-tissue microcirculation and low arterio-venous ratio recorded in the parenchyma of the parotid gland, which indicates that heterochronic and asynchronous functioning of these glands depending on the physiological load. But even in the parenchyma of the same gland density and pattern of the capillary network is changing. So in the parotid gland has the highest density hemo-tissue microcirculation in the rostral portion of gland as a consequence of the activation of the main vessels in this area.