FIELD: medicine.
SUBSTANCE: mechanical work of a frog's isolated heart is recorded by impedance cardiogram curve characterising contractive activity of the isolated heart in Ringer's solution for cold-blooded animals. The record is bipolar by means of "RheoSpectrum" rheographic system. In this case, one electrode is placed on a heart area to be examined, and the second one - into Ringer's solution surrounding the heart.
EFFECT: enabled simple and easy data acquisition on the mechanical work of the various departments of the isolated non-fixed heart with no risk of a myocardium damage; enabled continuous prolonged computer record of impedance cardiogram with saving the results on digital media.
4 dwg, 1 ex
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