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5 Written questions

5 Matching questions

  1. Threshold Stimulus
  2. Axon
  3. -70 mv
  4. Compound nerve action potential
  5. Axon Terminal
  1. a The amt of stimulus needed to create an action potential. NA+ rushes into the cell increasing the number of positive ions inside the cell and changing the membrane polarity
  2. b What is the resting membrane potential of a frog?
  3. c secretes neurotransmitters
  4. d The cumulation of action potential of all neurons in a nerve
  5. e impulse generator and transmitter

5 Multiple choice questions

  1. the PNS glial cell that surrounds the dorsal root ganglion neurons
  2. site of the nucleus and most important metabolic area
  3. What toxin blocks synaptic transmission by preventing the flow of neural impulses from neuron to neuron?
  4. Form the myelin in the brain and spinal cord
  5. collection of nerve cell bodies found outside the CNS

5 True/False questions

  1. Bipolar Neuronone axon and one dendrite


  2. Unipolar Neuronone single process leading away from the soma; afferent neurons are unipolar


  3. HyperpolarizationThe membrane has become more negative than resting potential. Until the channels close.


  4. Schwann Cellsthe PNS glial cell that surrounds the dorsal root ganglion neurons


  5. Neurotransmittersa chemical released at the distal end of an axon that stimulates an adjacent cell; found in the synaptic vesicles of the axon terminal; initiates electrical current from one neuron to the next by diffusing across the synaptic cleft