Reflex actions + Synapses

• What are conscious actions called

  Voluntary responses
• What are automatic responses called

  Reflexes
• What are reflexes 


  Automatic + rapid as they dont involve conscious part of your Brian
• What doe reflex actions involve

  • Sensory neurone
  • Relay neurones
  • Motor neurones
• What are junctions between neurones called

  Synaptic cleft
• What is the cell sending the signal called

  Presynaptic neurone
• What is the neurone receiving the signals called

  Pro synaptic neurone
• Explain how a message of is transmitted across a synapse

  • Electrical impulse reaches axon terminal
  • Releases neurotransmitters = sacs containing chemicals
  • They diffuse across the synapse
  • They attach to surface of presynaptic neurone
  • Triggers a new electrical impulse