BIPN 100 Lecture Notes - Lecture 2: Membrane Potential, Cardiac Muscle, Tetanus
8 Sep 2016
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Em would decrease and become more negative between ecl and ek. C)what is the most positive, and most negative, vm can be for this cell (assuming only na+, k + and. 1. in a healthy human, whose body temp is ~37 degrees, the ionic concentrations inside and outside a typical neuron plug and chug. The absolute refractory period is the interval from the beginning of the action potential until the fiber is able to conduct another action potential. The relative refractory period follows and is the time period in which, although the cell has not fully recovered, a small, weak action potential can be generated as the result of a strong input stimulus. The absolute refractory period is the time period during which the rapid influx of na+ rapidly decreases the negativity of the cardiac cell. As vm (membrane potential) approaches zero the electrostatic force pulling na+ into the cell is neutralized.
