“…Despite some features of physiology of the cardiovas cular system, the anatomy and morphology of the hearts of birds and mammals are generally similar [1]. Moreover, JQ is already used to analyze age related changes in the retina [2], which, like cardiovascular diseases, are associated with the pathologies of microvasculature and are precursors of the develop ment of disturbances of the cardiovascular system [3]. These data demonstrate the practicability of the inte grated study of the cardiovascular system using the same experimental objects.…”