What role does the Sodium-Potassium pump play in neurons?

The Sodium-Potassium pump is essential for maintaining the resting membrane potential of neurons, which is vital for their overall function. This pump actively transports sodium ions out of the neuron and potassium ions into the neuron against their concentration gradients. By doing this, it helps to maintain the proper balance of these ions, which is crucial for the excitability of neurons.

When the pump operates, it establishes a higher concentration of potassium ions inside the neuron and a higher concentration of sodium ions outside. This concentration gradient is integral to the neuron's ability to respond to stimuli and to generate action potentials, which are necessary for communication between neurons.

In summary, the Sodium-Potassium pump plays a critical role by ensuring that the balance of sodium and potassium ions is maintained, allowing neurons to function effectively in transmitting signals throughout the nervous system.