Ion movement

Highlight: Creating the Action Potential – Facilitated Diffusion and Active Transport – MHCC Biology 112: Biology for Health Professions (pressbooks.pub)

 Ion Movement:

When an ion channel is open, ions can diffuse down their respective electrochemical gradients.

The movement of ions across the membrane creates an electrochemical charge.

For example, the sodium/potassium pump actively transports sodium ions (Na⁺) out of the cell and potassium ions (K⁺) into the cell, maintaining ion concentration gradients on both sides of the membrane.

 In summary, ion channels facilitate the movement of specific ions across the cell membrane, allowing cells to generate electrical signals such as action potentials. 

These channels are essential for nerve impulses, muscle contractions, and other physiological processes. 

wiki-https://en.wikipedia.org/wiki/Ion_channel

Kenhub: https://www.kenhub.com/en/library/anatomy/ion-channels-and-gradients