[Architectonics of the arterial bed and blood flow in the lungs of frogs].

In morphometric studies of arteriolar branching of the frog lung with determination of the blood flow rate and its distribution, the diameter of the trunk was shown to lay between 16 and 350 mcm. The law of variation (in connection with the diameter range) and the specific features of interrelationship between some structural characteristics of the vascular branching were revealed. Analysis of the data obtained in vivo showed that the morphofunctional characteristics of the arteriolar branches in the frog lung corresponded to the theoretical "minimum work" model.