[Refractory properties of cardiac tissue at fast sodium current decrease. Comparison of atrium and ventricle].
Investigation of the membrane potential of Neurospora crassa mycelial cells was carried out by standard microelectrode technique. The resting potential is equal to--156 +/- 11 mV (negative inside the cell). The light of the spectrum blue-violet zone causes transient hyperpolarization of the cell membrane reaching --38 +/- 5 mV after 25 minutes of illumination.
D000818:Animals; D016275:Atrial Function; D006321:Heart / Q000187:drug effects / Q000502:physiology*; D009928:Organ Specificity; D011817:Rabbits; D012964:Sodium / Q000494:pharmacology*; D016276:Ventricular Function
D012964:Sodium
Refrakternost' serdechnoĭ tkani pri umen'shenii bystrogo vkhodiashchego Na-toka. Sravnenie predserdiia i zheludochka.