[Connective tissue development in rats with implanted chambers for in vivo microscopy].

The Sandison and Clark method of intravital microscopy including the implantation of special chambers into different areas of the body in order to study tissues in vivo in the chambers in the passing light was modified and adapted for experiments in rats. With the help of microcinematography the velocity of movement of the regenerating connective tissue of the rat and the velocity of the shift of granulocytes were found to equal 0,3 mm/a day and 50-200 nm/an hour respectively. Functional and morphological distinctions between leucocytes, macrophages and fibroblasts were noticed. The formation of vascular branches of a "stretched" type, arteries, veins and anastomoses between them was studied. The details of intravital staining of different connective units with neutral dyes and bright cresyl blue were investigated.