CNS & PNS Histology & Physiology - BM5 NLM1

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1. At resting membrane potential, which of the following is most likely to be true?

  • There is a [K+] gradient from inside the neuron towards the outside, causing the inside of the cell to become comparatively positively charged
  • There is a [Na+] gradient from inside the neuron towards the outside, causing the inside of the cell to become comparatively positively charged
  • There is a [K+] gradient from inside the neuron towards the outside, causing the inside of the cell to become comparatively negatively charged
  • There is a [Na+] gradient from inside the neuron towards the outside, causing the inside of the cell to become comparatively negatively charged
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Other questions in this quiz

2. Which of the following statements about axo-somatic synapses is true?

  • They're normally implosive
  • They're normally excitatory
  • They're normally inhibitory
  • They're normally explosive

3. What do ependymal cells do in the CNS?

  • Secrete CSF
  • Provide active immune defence
  • Myelination
  • Support the endothelial cells of the blood-brain barrier and participate in brain scarring

4. What are microglia?

  • The site of signal processing in the CNS
  • The site of signal processing in the PNS
  • Resident macrophages found in the CNS
  • Resident macrophages found in the PNS

5. True or false: axons contain ribosomes and mRNA, suggesting some protein synthesis occurs in them?

  • Hmmmm, give us a minute... Nope, we don't know.
  • False
  • Pass
  • True

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