Across
- 5. Specialized cells transmitting nerve impulses.
- 8. Neurons taking information from the brain to the rest of the body.
- 9. Cell bodied containing the nucleus and other parts of the cell needed to sustain its life.
- 11. Wirelike structure ending in the terminal buttons that extends from the cell body.
- 12. Proteins recognizing and bonding to specific molecules.
- 15. Neurotransmitters exciting the next cell into firing.
- 16. Neurotransmitters inhibiting the next cell from firing.
- 17. Neurons taking the messages and sending them elsewhere in the brain or on to efferent neurons.
- 18. The space between the terminal buttons of one neuron and the dendrites of the next neuron.
Down
- 1. A rapid sequence of changes in the voltage across a membrane.
- 2. Chemicals contained in terminal buttons that enable neurons to communicate.
- 3. The branched end of the axon that contain neurotransmitters.
- 4. A fatty covering around the axon of some neurons that speeds neural impulses.
- 6. Rootlike parts of the cell that stretch out from the cell body.
- 7. The cylindrical bundle of nerve fibres and associated tissue which is inclosed in the spin and connects nearly all parts of the body to the brain.
- 10. Neurons taking information from the senses to the brain.
- 13. Certain reactions occurring the moment sensory impulses reach the spinal cord.
- 14. An organ of soft nervous tissue contained in the skull of vertebrates.