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).
Under normal conditions, skeletal muscle does not contract unless an action potential depolarizes the cell membrane first. The process in smooth muscle cells: Smooth muscle, like skeletal muscle, needs some signal to begin contraction.eview of the process in skeletal muscle: Skeletal muscle has a well-defined system for producing excitation of the skeletal muscle cells. An alpha-motoneuron innervates the muscle cell, forming a neuromuscular junction.