Across
- 2. May excite or inhibit autonomic nervous system actions.
- 5. nerve carries messages away from the brain and spinal cord to muscles and organs; efferent nerve
- 8. (neuron) 2 or more single neurons connect with 1 cell body of a neuron
- 10. PNS: Stimulates Skeletal muscle,
- 12. slows neuron's firing speed
- 16. P A neurotransmitter that is involved in the transmission of pain messages to the brain.
- 17. chemical messengers that cross the synaptic gaps between neurons
- 18. the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
- 19. (neuron) 1 neuron sending signals to 2 or more cell bodies of other neurons
Down
- 1. a neurotransmitter's reabsorption by the sending neuron
- 3. pools functional groups of interconnected neurons
- 4. Destruction of neurotransmitters to stop nerve impulse
- 6. Cleft The narrow gap that separates the presynaptic neuron from the postsynaptic cell.
- 7. arc the nerve pathway involved in a reflex action including at its simplest a sensory nerve and a motor nerve with a synapse between.
- 9. -Signals pushing a neuron's accelerator
- 11. CNS: Creates a sense of feeling good:
- 13. chemical in the brain that plays a specialized role in pain reduction
- 14. Controls skeletal muscle actions
- 15. nerve carries messages toward the brain and spinal cord from a receptor; afferent nerve