[Anatomy and topography of rat pericardium].

The form and structure of the rat pericardium has been stated to be closely connected both with its function and with the function of the whole cardio-pulmonary complex, as well as with its topography in the thoracic cavity. As for certain specific peculiarities, it should be mentioned: presence of fascial-ligamentous duplication constructions and connections with the surrounding organs, which ensure the fixed position of the heart. The interconnections revealed between the pericardium and the pleura demonstrate that the lateral portions of the pericardium could be regarded as a single integrated wall of two serous tunics. A possibility for a direct injection of substances into the pericardial cavity is considered. An isolated position of the pericardium in the thoracic cavity is described.