2. Other Nerve Impulse Neuron Structure Neuroglia Organization 50 40 30 20 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50 10 20 30 40 50

3. brain and spinal cord

4. Includes nerves extending from the brain & spinal cord

5. Sub-division of motor nervous system; involuntary control

6. Sub-division of the motor nervous system; voluntary control

7. Division of PNS carrying information from environment to CNS

8. Type of neuroglia in CNS that has a immune function

9. Type of neuroglia in PNS that forms the myelin sheath

10. Type of CNS neuroglia that acts as a blood-brain barrier; connects neurons to capillaries

11. Type of neuroglia that produce & circulate cerebrospinal fluid in the CNS

12. Type of neuroglia in the CNS that forms myelin sheath

13. long process connecting soma to terminals

14. Processes that gather/detect information from receptors or nearby cells

15. secrete neurotransmitters

16. Involved in saltatory conduction in myelinated axons

17. Location of hereditary information/instructions for building protein

18. moves sodium & potassium ions against their gradients

19. Nerve cell receives enough stimulation to generate an action potential

20. Occurs when Na channels close and K channels open following an action potential

21. Occurs when K ions try to reach their equilibrium potential

22. Period of time when the neuron cannot be stimulated following an action potential

23. type of neuron in the brain and spinal cord (functional classification)

24. Type of impulse conduction where the action potential “jumps” from node to node

25. - 70 mV; membrane is “polarized” w/ more + charges outside than inside

26. Sensory neuron  interneuron  motor neuron

27. Type of neuron with lots of dendritic processes (structural classification)