- 3- A nerve signal begins as a change in the membrane potential
- 4- Nerve function depends on charge differences across neuron membranes
- 5- The action potential propagates itself along the axon
- 6- Visualizing the concept: neurons communicate at synapses
- 7- Chemical synapses enable complex information to be processed
- 8- A variety of small molecules function as neurotransmitters
- 9- Connection: Many drugs act at chemical synapses
- 10- Scientific Thinking: Published data are biased toward positive findings