TED-Ed: How do nerves work? - Elliot Krane

Nerves are not just simple wires but complex systems involving sensors, transducers, and activators. They react to stimuli like touch, heat, and movement, each neuron specialized for specific impulses. Nerve impulses start at receptors, with ion exchanges creating electrical charges. Synaptic transmission involves neurotransmitter release, modulating signals to other nerves or organs.

Describe the role of potassium and sodium ions in the nerve's resting potential.

What happens to the electrical charge of a nerve when it is stimulated?