Biomedical subjects
Publications and source records attributed to V V Vovereĭdt.
It has been found in experiments on isolated papillary muscles that cooling of the cat myocardium does not affect the efficacy of Starling's mechanism but decreases the chronoinotropic autoregulation of the heart muscle.
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Experiments on papillary muscles of the cat heart have shown that the strength of contraction is a more adequate and sensitive criterion for evaluation of the effects of temperature, distension and contraction rate on myocardial contractility as compared to the strength of contraction. It is concluded that at the basis of the Starling law and chronoinotropic mechanisms there lies the contractility control exercised through changes in the contraction rate.
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A device for measuring the blood flow volume velocity based on the principle of blood drops count per an unit of time was developed. The device is simple to manufacture, has an appropriate precision, a wide scale of measurements and can continuously record the blood flow dynamics during an experiment.