lo 5-3 how does the nervous
system communicate electrica
and chemical messages from
one part to another?

Neurons communicate, an electrical impulse triggers the release of neurotransmitters from the axon into the synapse. The neurotransmitters cross the synapse and bind to special molecules on the other side, called receptors. Receptors are located on the dendrites. Receptors receive and process the message.

a physical change is being made.

oxygen +1 most likely