Question

describe the generation of an action potential?

Answer 1

Answer :- Step of generation of an action potential ;

Steps 1. Depolarization occurs when a threshold level stimulus causes Na+ ion channels to open. When they open, Na+ ions rush in changing the electrical potential from -55 mV to +30 mV leads to  membrane depolarisation.

Step 2 : Rapid depolarization around the cell membrane result is voltage gated Na+ ion channels open.

Step 3 : As the membrane reaches +30 mV, the Na+ ion channels close, stopping the depolarization. Then, K+ ion channels open allowing K+ ions to move out of the cell

Step 4 : After that membrane into refractory periods where membrane cannot conduct an action potential.

Step 5 : Na+ ions are now inside the cell and K+ ions are now outside the cell. The sodium-potassium pump moves the ions to their original positions which allows for more action potentials to be continue ...Thanks dear student