Across
- 4. Time after action potential where neuron is unable to have another action potential
- 6. Receive messages from other cells
- 8. Carry information away from CNS (output/motor)
- 12. Carry information from sensory receptors to brain and spinal cord
- 15. Neurons within brain and spinal cord that communicate internally
- 16. Blocks receptor sites and decreases action of neurotransmitter
- 17. Carry signal towards CNS (input/sensory)
- 18. Intersection between axon tip of sending neuron and dendrite of receiving neuron
- 20. Molecular and electrical message to other neurons that is based on movement of ions in and out of cell
Down
- 1. Nerve cell, basic building block of nervous system
- 2. Chemical messengers secreted into blood which carries them to organs and tissues
- 3. Chemical messengers inside of body that carry messages between neurons
- 5. Regulates key involuntary functions of body, has sympathetic and parasympathetic divisions
- 7. Increase action of neurotransmitter
- 9. Neurotransmitter is taken back into cell that released it to be recycled
- 10. Controls body's skeletal muscles that perform voluntary and reflex movements
- 11. Passes messages away from cell body to other neurons
- 13. After cell is stimulated, negative ions rush out of cell as positive ions rush in
- 14. Carry outgoing information from brain and spinal cord to muscles and glands
- 19. Chemically controls various functions of cells, tissues, and organs