Post differentials. (a). A post differential may be granted on the basis of conditions of environment which differ substantially from conditions of environment in the continental United States and warrant additional pay as a recruitment and retention incentive.
We will also see that in order for a neuron to generate an action potential, the membrane potential has to depolarize from the resting value of around â70 mV to the threshold value of around â50 mV. A similar situation is also at play in muscle cells (skeletal, cardiac, and smooth).
Learn the obvious differences between action potentials in cardiac muscle and those in nerve and skeletal muscle. In nerve and skeletal muscle, 2 types of ionic channels are important for producing action potentials. The voltage-gated Na+ channels and the delayed rectifier K+ channels. In cardiac muscle, many more types of ionic channels contribute to the action potential. The cardiac action potential is also longer in duration.