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5 Written questions

5 Matching questions

  1. What is temporal summation?
  2. What is left behind when potassium (K+) leaks out?
  3. Where does each telodendron end?
  4. What kind of neurons are the cells in the dorsal/sensory roots of the spinal cord?
  5. What has one process extending from the body and divides into central and peripheral processes?
  1. a several subthreshold stimuli must sum within a critical time period to initiate new AP
  2. b anions (large quantities of (-) charged protein molecules that cannot leak out)
    which is why the inside of the cell is negative relative to the outside
  3. c unipolar neurons
  4. d unipolar or pseudopolar
  5. e at the terminal bouton

5 Multiple choice questions

  1. microglia
  2. in choroid plexus and other structures related to the ventricles
  3. Axon length can vary from a few micrometers (in the brain) to as long as 2 meters (in the spinal cord)
  4. depolarization (where the normal negatively polarized state no longer exists)
  5. dendrite

5 True/False questions

  1. What occupies spaces between neural processes in the gray matter?astroglia


  2. Which neuron is found in the brain?multipolar


  3. When a signal is transmitted over a nerve fiber, the membrane potential goes through a series of changes called the ____ ________neuromuscular (myoneural) junction


  4. A _____ stimulus evokes a large (er) potentialstronger
    large voltage change


  5. Why are astroglia believed to play a role in transport of substances between capillaries and neurons and in the blood brain barrier?Because they have end-feet that contact capillaries


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