The electrochemical gradient across the muscle plasma membrane (more sodium moves in than potassium out) causes alocal depolarizationof the motor end-plate. This depolarization initiates an action potential on the muscle fiber cell membrane (sarcolemma) that travels across the surface of the muscle fi...
Hydrostatic pressure is a force generated bythe pressure of fluid on the capillary walls either by the blood plasma or interstitial fluid. The net filtration pressure is the balance of the four Starling forces and determines the net flow of fluid across the capillary membrane. ...