Synaptic Transmission

Descrição

A-Level Biology (The Nervous System) Fluxograma sobre Synaptic Transmission, criado por Fauzia Ali em 06-02-2017.
Fauzia Ali
Fluxograma por Fauzia Ali, atualizado more than 1 year ago
Fauzia Ali
Criado por Fauzia Ali aproximadamente 7 anos atrás
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Resumo de Recurso

Nós do fluxograma

  • An impulse arrives at the presynaptic knob
  • Post-synaptic membrane depolarised causing action potential
  • Voltage-dependant calcium channels open, causing influx of Ca+ ions
  • Synaptic vesicles contain acetylcholine bind to presynaptic membrane and releases neurotransmitter by exocytosis into synaptic cleft
  • Neurotransmitter diffuses to receptor on a protein on post-synaptic membrane
  • Co-operative binding on receptor: 2 receptor sites
  • Threshold reached (-55mV)
  • Channel opens and Na+ ions diffuse in
  • Acetylcholine hydrolysed or destroyed by enzyme

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