Across
- 2. A chemical substance released by a neuron that binds to a receptor
- 5. An ____________ activates a receptor
- 6. The process by which neurotransmitters are taken back into the presynaptic neuron
- 8. The small gap that separates two neurons
Down
- 1. An ______________ stops a receptor from being activated
- 3. An _________ is a graded potential that slightly inhibits a postsynaptic neuron
- 4. The ion most involved at the axon terminals (helps fuse vesicles to membrane)
- 7. An _________ is a graded potential that slightly excites a postsynaptic neuron