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5 Written questions

5 Matching questions

  1. Nerve impulse
  2. Hyperpolarization
  3. deep pressure, cold temperature
  4. larger the nerve the faster the conduction velocity, myelinated nerves are faster than unmyelinated nerves
  5. Neuronal Cell Body
  1. a Name a couple of physical factors that can inhibit a nerve impulse.
  2. b site of the nucleus and most important metabolic area
  3. c The membrane has become more negative than resting potential. Until the channels close.
  4. d What is the relationship between myelination and size and conduction velocity?
  5. e Another name for the action potential in neurons.

5 Multiple choice questions

  1. How does the membrane maintain the difference in electrical charge established by diffusion of ions?
  2. a bundle of nerve processes
  3. one axon and multiple dendrites; efferent neurons and interneurons are multipolar
  4. one axon and one dendrite
  5. Ganglia and spinal and cranial nerves

5 True/False questions

  1. Absolute Refractory PeriodWhat period is it when the sodium ion channels are open, the membrane is totally insensitive to additional stimuli, regardless of the force of the stimulus?


  2. Threshold StimulusThe 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


  3. Resting membrane potentialDifference in electrical charge across the plasma membrane. The membrane would be POLARIZED.


  4. -40mv and -90mvWhat is the resting membrane potential in a human?


  5. Ependymal CellsLine cavities of the brain and spinal cord; secrete and circulate cerebrospinal fluid


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