Week 110 Synaptic Transmission

16 Questions | Total Attempts: 2333

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Soul Quizzes & Trivia

Self test on Action Potentials and Synaptic Transmission (Week 110)


Questions and Answers
  • 1. 
    Resting membrane potential is maintained by which exchanger?
    • A. 

      Na+/H+

    • B. 

      Na+/Ca2+

    • C. 

      Na+/Cl-

    • D. 

      K+/Ca2+

    • E. 

      Na+/K+

  • 2. 
    Which ion enters the neurone during the rising phase of the action potential
    • A. 

      Na+

    • B. 

      Cl-

    • C. 

      K+

    • D. 

      Ca2+

    • E. 

      A-

  • 3. 
    Which ion leaves the neurone during the falling phase of the action potential
    • A. 

      Na+

    • B. 

      Cl-

    • C. 

      K+

    • D. 

      Ca2+

    • E. 

      A-

  • 4. 
    Influx of which ion triggers neurotransmitter release
    • A. 

      Na+

    • B. 

      Cl-

    • C. 

      K+

    • D. 

      Ca2+

    • E. 

      A-

  • 5. 
    The ion conducted by GABA-A receptors
    • A. 

      Na+

    • B. 

      Cl-

    • C. 

      K+

    • D. 

      Ca2+

    • E. 

      A-

  • 6. 
    Influx of Cl- thru GABA-A receptors leads to
    • A. 

      Threshold

    • B. 

      Depolarization

    • C. 

      Repolarisation

    • D. 

      Hyperpolarization

    • E. 

      Maintenance of the resting membrane potential

  • 7. 
    The electrical insulation tape for neurones is called
  • 8. 
    Cell type whose role is myelination of nerves in the peripheral nervous system
    • A. 

      Schwann cells

    • B. 

      Microglia

    • C. 

      Oligodendrocytes

    • D. 

      Ependymal cells

    • E. 

      Astrocytes

  • 9. 
    Cell type whose role is myelination of nerves in the central nervous system
    • A. 

      Schwann cells

    • B. 

      Microglia

    • C. 

      Oligodendrocytes

    • D. 

      Ependymal cells

    • E. 

      Astrocytes

  • 10. 
    Disorder associated with demyelination of nerves in the central nervous system
    • A. 

      Schizophrenia

    • B. 

      Parkinsons disease

    • C. 

      Alzheimers disease

    • D. 

      Epilepsy

    • E. 

      Multiple sclerosis

  • 11. 
    Carbamazepine blocks
    • A. 

      Voltage-gated sodium channels

    • B. 

      Voltage-gated potassium channels

    • C. 

      Voltage-gated calcium channels

    • D. 

      Ligand-gated chloride channels

    • E. 

      Ligand-gated sodium channels

  • 12. 
    Carbamazepine blocks
    • A. 

      Maintenance of resting membrane potential

    • B. 

      Hyperpolarization

    • C. 

      Neurotransmitter reuptake

    • D. 

      The firing of action potentials

    • E. 

      The Mumbles Road

  • 13. 
    Lidocaine blocks
    • A. 

      Voltage-gated sodium channels

    • B. 

      Voltage-gated potassium channels

    • C. 

      Voltage-gated calcium channels

    • D. 

      Ligand-gated sodium channels

    • E. 

      Ligand-gated chloride channels

  • 14. 
    Resting membrane potential is approximately
    • A. 

      -65mV

    • B. 

      -40mV

    • C. 

      0mV

    • D. 

      +40mV

    • E. 

      +65mV

  • 15. 
    Threshold membrane potential is approximately
    • A. 

      -65mV

    • B. 

      -40mV

    • C. 

      0mV

    • D. 

      +40mV

    • E. 

      +65mV

  • 16. 
    Compound action potentials are measured by
    • A. 

      Magnetic resonance imaging (MRI)

    • B. 

      Nerve conduction velocity tests

    • C. 

      Angiography

    • D. 

      Computerised Tomography (CT) scans

    • E. 

      Ultrasound

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