PSY108 MCQ's

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1. Conduction of action potentials in myelinated axons:

  • Requires more energy than in unmyelinated axons
  • Is faster than in unmyelinated axons
  • Is possible in only one direction
  • Is slower than in unmyelinated axons
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2. A neuron fires when:

  • ts sodium-potassium pumps are stimulated
  • The degree of depolarisation of the axon hillock exceeds the threshold of activation
  • There is an EPSP
  • There is an IPSP

3. Most sensory nuclei of the thalamus project to the:

  • Cerebellum
  • Cortex
  • Reticular formation
  • Substantia nigra

4. Cocaine is:

  • Blocker of catecholamine reuptake
  • Dopamine agonist, Norepinephrine agonist and blocker of catecholamine reuptake
  • A norepinephrine agonist
  • Dopamine agonist

5. The midbrain is:

  • Part of the mesencephalon
  • The mesencephalon and part of the brainstem
  • Part of the brainstem
  • The mesencephalon


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