Anatomy & Physiology › Section K · Nervous tissue › Topic K.4
Communication between neurons
An action potential cannot jump from one neuron to the next. At most synapses the electrical signal becomes a chemical one and then electrical again, and at every step the receiving neuron weighs its inputs before deciding whether to fire.
In this topic
- Graded potentials start the signal
- EPSPs and IPSPs
- Summation at the trigger zone
- Worked example: will the neuron fire?
- Electrical and chemical synapses
- From action potential to transmitter release
- Ionotropic and metabotropic receptors
- The main neurotransmitter systems
- The receptor decides the effect
- Worked example: ACh at the heart
- Common mistakes to avoid
- Key takeaways
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