Nernst Potential And Nernst Equation

The Nernst potential is The potential across the cell membrane that exactly opposes net diffusion of a particular ion through the membrane. The Nernst equation has a physiological application when used to calculate the potential of an ion of charge z across a membrane This potential is determined using the concentration of the ion both inside and outside the cell: When the membrane is in thermodynamic equilibrium (i.e., no net flux of ions), the membrane potential must be equal to the Nernst potential. However, in physiology, due to active ion pumps, the inside and outside of a cell are not in equilibrium. in this case, the resting potential can be determined from the Goldman equation, which is a solution of G-H-K influx equation under the constraints that total current density driven by electrochemical force is zero Show us your support by SUBSCRIBING,LIKING and SHARING. Connect with us on our website www.medcrine.com Follow us on twitter @medcrine Telegram at https://t.me/medcrine