An interesting phenomenon in cell membrane physiology is the presence of a sodium-potassium pump. The essence of this pump is the stimulation of the migration of positively charged sodium and potassium ions through transmembrane proteins. As a result of this activity, strictly three sodium cations move into the extracellular medium, while two potassium cations, on the contrary, move inward.
As a result of this balanced effect of the migration of positively charged ions, the osmotic pressure inside the living cell is maintained. In addition, related functions are also indicated, namely maintaining the resting potential of the cell and its volumes so that it does not burst because of excess inputs.
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