nervous system vocab

3. progressive destruction of myelin sheaths, causing a loss of sensation and motor control
6. includes brain and spinal cord
7. contains the neuron’s organelles
9. increase membrane permeability, increases chance for threshold to be achieved
12. transmits information from the senses toward the brain
13. cells specialized in transmitting and receiving messages
14. transmits commands to the muscles and glands from the brain
16. support neurons by regulating their surrounding environment
17. includes “rest and digest” responses
19. thin pads of lipids that serve as electrical insulation
20. controls skeletal muscle

1. conduct impulses away from the cell body
2. receive incoming signals
4. regulates involuntary smooth and cardiac muscle, as well as glands
5. all nervous tissue outside of the brain and spinal cord
8. includes “fight or flight” responses
10. caused by a bacterial toxin that inhibits the enzyme that breaks down acetylcholine.
11. to be achieved
15. decrease membrane permeability, decrease chance for
18. a disease caused by the ingestion of toxins from the bacterium Clostridium botulinum found in some rotting food.