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5 Written questions

5 Matching questions

  1. What is neurosomatic?
  2. What is the range of conduction speed for myelinated neurons?
  3. What occupies spaces between neural processes in the gray matter?
  4. What neuron is T-shaped?
  5. How many neurons are in the human brain?
  1. a 100 billion
  2. b astroglia
  3. c neuron to cell body (soma) or dendrite of a neuron
  4. d 2 - 100 meters/sec.
  5. e unipolar

5 Multiple choice questions

  1. 1. AP arrives at the terminal bouton
    2. this causes depolarization of presynaptic membrane
    3. Influx of calcium (CA++) from synaptic cleft
    activates neurotransmitter release from the synaptic vessicles
  2. at a synapse
  3. space between the
    bouton of one neuron and the cell body, dendrite or axon or another neuron
    or the space between the bouton and the cell membrane of a muscle fiber neuron to muscle synapse
  4. neuromuscular (myoneural) junction
  5. depolarization (where the normal negatively polarized state no longer exists)

5 True/False questions

  1. Axon length can vary from ___ ____ (in the brain) to as long as __ ______ (in the spinal cord)Glial cells far outnumber neurons by 5-50 times.


  2. What is called initial segment where action potential is initiated?-70mV


  3. The thicker the fiber, the longer the _____internodes


  4. What unit is specialized as a receptor and integrator of info received from other neurons?dendrite-cell body


  5. What are the largest and most numerous of the glial cells?astroglia