MCQ Questions
Q.1.
The channelopathy known as QT syndrome is a result of mutation in ________ channels.ANSWER: sodium chloride potassium sodium, potassium, or calcium calcium
  • 67%
    sodium, potassium, or calcium
  • 0%
    peripheral nervous system.
  • 33%
    whether axon is sensory or motor
  • 0%
    K+ flow out of the cell only.
Q.2.
Information coming into the central nervous system is transmitted along ________ neurons.ANSWER: afferent sensory and efferent efferent afferent and sensory sensory
  • 0%
    Cl- ions enter the cell.
  • 0%
    sodium, potassium, or calcium
  • 50%
    whether axon is sensory or motor
  • 50%
    afferent and sensory
Q.3.
When voltage-gated Na+ channels of a resting neuron open,ANSWER:-Na+ enters the neuron and the neuron depolarizes.-Na+ leaves the neuron and the neuron depolarizes.-Na+ enters the neuron.-Na+ leaves the neuron.-the neuron depolarizes.
  • 50%
    Na+ enters the neuron and the neuron depolarizes.
  • 50%
    Na+ flow into the cell only.
  • 0%
    Increase the diameter of the axon, increase the resistance of the axon membrane to ion leakage.
  • 0%
    K+ leaves the neuron.