[Biometric characteristics of correlative intratruncal neurovascular relations of the peripheral nerves of dogs].

By methods of a combined revealing of blood vessels and neural fibres (the latter were stained after Kulchitsky, Masson and Ranson), by impregnation of microvessels after V. V. Kuprianov using histometric and mathematical analysis, correlative peculiarities of myelinated and unmyelinated neural fibres with intratruncal blood vessels were studied in the median, ulnar, musculocutaneous, radial and ischiatic nerves of 20 mature dogs. Every intratruncal capillary provides nutrition to a group of neural fibres and their endoneural environment in a certain zone. The size of the radius and area of these zones is directly proportional to the diameters of the capillaries. Nutritional zones of adjacent capillaries overlap each other, thus reliably securing the neural fibre feeding. There is a close positive correlative interrelation between the number of the neural fibres and that of the intratruncal capillaries, as well as between indices of their metric distribution; that demonstrates a morpho-functional dependence of the myelo- and angioarchitectonics of the nerves studied.