Neurons & Synapses

4. occurs when K+ begins to move out of the cell until membrane potential becomes less than resting potential
9. convert info from receptor cells into electrical signals
10. cell body of the neuron
11. sodium-potassium pump requires ___ to move materials
12. acetylcholine is an example of a ___
15. the movement of action potentials along the axon is called ___
16. combines with the acetyl group to produce acetylcholine
17. action potentials move along the ___
18. the potential that occurs when the neurons send electrical signals

1. junction between nerve cells
2. occurs in a cell when sodium channels open and sodium diffuses into cells
3. a neurotransmitter important for muscle movement, learning, memory, and attention.
5. ions 2 of these move into cells through the sodium-potassium pump
6. sodium-potassium pump moves materials ___ the concentration gradient
7. nerve cell
8. that type of signals that are transmitted through the nervous system
13. the potential in which a neuron is not firing
14. ions 3 of these move out of cells through the sodium-potassium pump