nervous system

• describe function of nervous system

  react to surroundings and coordinate behaviour
• give components of nervous system

  neurones - sensory, motor and relay - and cns
• describe neurone

  transmit information as electrical impulses through synapses
• describe synapses

  connection of neurones where chemicals diffuse across gap and stimulate electrical impulse
• describe functions of types of neurones

  sensory - receptor to cns

  relay - sensory to motor

  motor - cns to effector
• give components of cns

  brain and spinal cord
• give process of response by nervous system

  1. stimulus
  2. receptor
  3. sensory neurone
  4. cns
  5. motor neurone
  6. effector
  7. response
• describe reflex

  automatic and rapid responses that don't involve conscious parts of the brain transmitting information through reflex arc
• give process of response through reflex arc

  1. stimulus
  2. receptor
  3. sensory neurone
  4. relay neurone
  5. motor neurone
  6. effector
  7. response