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).
The resting potential is created by a transport protein called the sodium-potassium pump. This protein moves large numbers of sodium ions (Na +) outside the cell, creating the positive charge. At the same time, the protein moves some potassium (K +) ions into the cellâs cytoplasm.