Nervous System 2 Holes Version 2

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Across
  1. 2. At resting potential, the ion distribution inside and outside of a neuron is such that __________ ions are most abundant on the outside of the cell, while potassium ions are most abundant on the inside of the cell.
  2. 4. Branched nerve fibers that convey local potential changes toward the cell body of a neuron are called _____________.
  3. 5. The portion of the brain involved in understanding speech and using words is located in the ____________ lobe f the cerebrum.
  4. 9. Which types of neurons are likely to increase muscular activities?
  5. 10. Which brain area acts to regulate body temperature?
  6. 14. In response to a stimulus, if the membrane potential becomes more negative than the resting potential, we say the membrane is _______________.
  7. 17. Parkinson disease tremors are the result of which deficiency?
  8. 18. A neuron with many nerve fibers arising from its cell body and that carries impulses away from the brain would be classified as __________________.
  9. 20. Fibers that originate from different parts of the nervous system and lead to the same neuron are exhibiting _____________.
  10. 21. When a person thinks and solves problems, which area (lobe) of the cerebrum is involved?
  11. 22. Where are visual and auditory reflexes centered?
  12. 23. Excessive sleeping is most likely due to the presence of too much of which neurotransmitter?
Down
  1. 1. The _____ cells are capable of removing a blood clot from the brain.
  2. 3. Which brain area coordinates skeletal muscle movements?
  3. 6. Nerves impulses always travel to the brain through _____ fibers.
  4. 7. The levels of which neurotransmitter are affected by the mood-elevator, cocaine?
  5. 8. Which pair of cranial nerves are mixed nerves that supply the chest and abdomen with autonomic nerves?
  6. 11. Which brain area acts to screen all incoming sensory data except for smell?
  7. 12. Partial or complete inability to coordinate voluntary movements is also referred to as ___________.
  8. 13. When a neuron reaches action potential, it depolarizes and repolarizes in an amount of time on the order of ________________.
  9. 15. The most common neurotransmitter in the body is _____.
  10. 16. The connective tissue closest to the single neuron is the _____________.
  11. 19. Myelin sheaths on the outsides of many axons in the peripheral nervous system are contributed by ______________ cells.