[The functional morphology of the restructuring of the resistive vessels and capillaries of the lungs during adaptation to high altitude].

With the use of histologic, electron microscopic and morphometric methods the problems of adaptive morphofunctional rearrangement of lung vessels and capillaries in the process of adaptation of rabbits to high altitude are studied. The presence of secretory granules in the endothelial cells of lung arterioles and capillaries (which are likely to be morphological expression of local endocrine mechanisms of the vascular tone regulation) is established.