Nervous system

• what Is the CNS?


  The brain and spinal cord
• what does the Brain do?


  brain provides conscious awareness and involved in psychological processes
• what are the main regions of the brain?

  occipital lobe, temporal lobe, parietal lobe, frontal lobe
• what done’s occipital lobe do?


  processes visual info
• what does the temporal lobe do?


  processes auditory info
• what is parietal lobe?


  intergrates info form different senses
• what does the frontal lobe do?


  associated with high order functions
• what does the spinal cord do?


  transfers messages to and from the brain across the body
• what does PNS stand for?


  perphial nervous system
• what is the role of the somatic nervous system?


  Maintains communication between CNS and outside world
• what does the SNS contain?


  sensory neurones, motor pathways
• stage one of fight or flight

  amygdala is activated which sends distressed signals to the hypothalamus
• stage two of fight or flight


  hypothalamus activates the sympathmedually pathway (SAM)
• stage three of fight or flight


  SNS stimulates the adrenal medulla
• stage four of fight or flight


  adrenal medulla secrets hormones adrenaline and noradrenaline into the bloodstream
• stage five of fight or flight


  adrenaline causes physiological changes to prepare body for fight or flight
• what does SAM stand for?


  Sympathmedullary system
• what is SAM?


  controls the bodies automatic responses refering to the adrenal glands
• what is SAM?


  controls the bodies automatic responses refering to the adrenal glands controls the bodies automatic responses refering to the adrenal glands
• what physiological changes does adrenaline cause?


  increased heart rate, creased breathing, pupil dilation