Muscle Contraction during Hyperpolarizing Currents in the Crab

  title={Muscle Contraction during Hyperpolarizing Currents in the Crab},
  author={Osvaldo Daniel Uchitel and Hayd{\'e}e Garc{\'i}a},
  journal={The Journal of General Physiology},
  pages={111 - 122}
Isolated muscle fibers from the motor legs of the crab Trichodactilus dilocarcinus were submitted to strong hyperpolarizing currents of varied intensities which produced tension during the current pulse. Threshold for tension was obtained with intensities of about 0.2 x 10(-5) A, changing E(m) to ca. -150 mV (starting from a resting potential ofca. -80 mV). At the closure of the anodic square pulse, a second phase of tension usually appeared superimposed upon the one obtained during… CONTINUE READING

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