How much do you know about Purkinje cells?
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Questions and Answers

Qui a décrit pour la première fois les cellules de Purkinje ?

  • Jan Evangelista Purkyně en 1837 (correct)
  • Johannes Peter Müller en 1837
  • Santiago Ramón y Cajal en 1906
  • Roger Sperry en 1963
  • Quel est l'effet des cellules de Purkinje sur leurs cibles ?

  • Excitatif
  • Inhibiteur (correct)
  • Neutre
  • Variable
  • Combien d'épines peuvent être présentes sur une seule cellule de Purkinje chez l'homme ?

  • 20 000
  • 100 000
  • 200 000 (correct)
  • 500 000
  • Study Notes

    • Purkinje cells are distinctive neurons in the brain.
    • They were first described by Jan Evangelista Purkyně in 1837.
    • Their dendrites form a dense planar network with parallel fibers passing through.
    • They receive more synaptic inputs than any other type of cell in the brain.
    • The estimates of spines on a single human Purkinje cell reach 200,000.
    • Their cell bodies are grouped in a single layer of the cerebellar cortex called the Purkinje layer.
    • They emit axonal collaterals that affect neighboring parts of the cortex.
    • Their axons travel to the deep cerebellar nuclei and establish multiple contacts with different types of nuclear cells.
    • Purkinje cells use GABA as a neurotransmitter.
    • They have inhibitory effects on their targets.

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    Description

    Test your knowledge about Purkinje cells, the distinctive neurons in the brain that were first described by Jan Evangelista Purkyně in 1837. Learn about their dendrites, the dense planar network they form, and the incredible number of synaptic inputs they receive. Discover how their axons affect neighboring parts of the cortex and establish multiple contacts with different types of nuclear cells. Test your understanding of the neurotransmitter they use and the inhibitory effects they have on their targets. Take this

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