Structure+Functions of Nervous System

• How does the nervous system transfer messages to effectors to react?

  1. Stimulus is detected by sensory receptor
  2. Electrical impulse is then sent along sensory neuron
  3. Reaches end of to synapse and then chemicals diffuse across and then electrical impulse continues
  4. Reaches CNS then brain coordinates it to motor neuron then to a muscle effector
• How does info travel across a synapse?

  1. Electrical Impulse reaches end of synapse and triggers Neurotransmitters
  2. Chemicals then diffuses across synapse and binds to the next neuron
  3. This triggers to create an electrical impulse to travel to effector across neuron

  
• What are the 2 types of effectors?


  • Glands
  • Muscles
• Reaction Time Practical: