Question

1. describe how the electrical system of the brain works.

Explanation:

The brain's electrical system involves neurons. Neurons generate electrical impulses called action - potentials. These are due to the movement of ions (such as sodium and potassium) across the neuron membrane. Synapses are the junctions between neurons, and electrical signals can be converted to chemical signals (neurotransmitters) at synapses to communicate between neurons.

Answer:

Neurons generate action - potentials through ion movement across their membranes. Signals are communicated between neurons via synapses where electrical signals can be converted to chemical signals (neurotransmitters).