This is the transaction of the 1956 annual meeting of the German Society for circulation research. The topic of the meeting was functional relationship of the heart and vessel system. Lectures from the fields of physiology, pathology, and clinic gave an over-all picture of the present stand of our knowledge in this section of the circulation. How changes in peripheral dynamics affect the heart function was discussed by physiologist Reichel. Recent studies in physiology, such as Rushmer's volume elasticity determinations of the ventricles and Nylin's radioisotope examinations of the residual volume, are mentioned.
Dynamics of the vascular system were discussed by Wetterer. This investigator, known by his studies of pulse-wave transmission and by the invention of an electromagnetic flowmeter, reviewed the wave theory of the arterial ("Windkessel") system. The determination of pressure and volume curves and variations of the distensibility according to the Hamilton School, which is in some aspects