Neurophysiology & Contraction
Across
- 1. Channels responding to changes in membrane potential.
- 3. Phase restoring negative membrane potential (K+ efflux).
- 5. Passive ion channels maintaining resting membrane potential.
- 7. Rapid depolarization/repolarization propagating along excitable membranes.
- 12. Channels opening when neurotransmitters bind.
- 14. Synapse between motor neuron and muscle fiber.
- 15. State of having a membrane potential (negative inside relative to outside).
- 17. Vesicles storing neurotransmitters in axon terminals.
- 19. Measure of potential energy in electrical charges (in millivolts).
- 22. Voltage difference between a cell's interior and exterior.
- 23. Pump maintaining ionic gradients by exchanging 3Na+ out/2K+ in.
- 25. Space between axon terminal and motor end plate.
- 26. Ion channels opening/closing in response to stimuli.
- 27. Specialized sarcolemma region with acetylcholine receptors.
- 29. Depolarization of motor end plate by acetylcholine.
- 30. Sequence linking action potentials to crossbridge cycling.
- 31. Junction between neuron and target cell (e.g., neuromuscular junction).
Down
- 2. Process where action potentials trigger muscle contraction.
- 4. Study of electrical properties in cells and tissues.
- 6. Long projection of a neuron conducting action potentials.
- 8. Voltage difference across a cell membrane.
- 9. State of being supplied with motor neurons.
- 10. Combined influence of concentration and electrical gradients on ions.
- 11. Stable voltage (-70mV in neurons) when not transmitting signals.
- 13. Phase where membrane potential becomes less negative (Na+ influx).
- 16. Neuron transmitting signals from CNS to muscles.
- 18. Chemical messengers (e.g., acetylcholine) crossing synaptic clefts.
- 20. Enzyme breaking down acetylcholine to terminate signals.
- 21. End of axon releasing neurotransmitters.
- 24. Ability of action potentials to spread along membranes.
- 28. Neurotransmitter activating skeletal muscle contraction.