Nervous System

5. Passes impulses only in brain and spinal cord.
7. Part of brain stem that reacts to light and sound.
8. Coordinates movement and balance.
9. Used to prevent infections of the nervous system.
11. These neurons send impulses to muscles and glands.
13. Motor nerves in this system carry signals for voluntary action.
14. Proper diet, exercise and _ can help prevent headaches.
16. Moist, spongy organ weighing about 3 pounds.
18. Basic unit of the nervous system.
23. Sudden, uncontrolled nerve impulses.
24. Prolonged unconsciousness.
26. Carries nerve impulses toward neuron cell body.
28. Bruise-like injury to brain.
29. (two words) thick column if nerve tissue linking the brain to nerves in the peripheral system.
30. Automatic response
31. Junction between an axon and another cell.
32. Controls heart rate, blood pressure and swallowing.

1. (two words, no space)Covers axon, increases speed.
2. The two divisions of the nervous system are the central and the:
3. Controls breathing and aids in coordinating information.
4. Impulses travel along these toward other cells.
6. Disorder that makes people prone to seizures.
10. (three words) Nerve injury to wrist and fingers.
12. Infection of the brain.
15. Protects the spinal cord.
17. Cell ____ controls a neuron's basic functions.
19. loss of the ability to move.
20. The most common problem people experience from the nervous system.
21. The central nervous system includes the spinal cord and the:
22. Motor nerves in this system regulate involuntary actions.
25. This type of neuron gathers information about your internal and external environment.
27. (two words) Carries information to and from the rest of the brain.
28. Functions include movement, speech and abstract thought.