Nervous system

• biopsychologists argue for a genetic basis for behaviour
• a genetic basis for behaviour are the differences in our chromosomal makeup can have a significant effect on our psychology and behaviour
• the genetic basis of behaviour assumes behaviour and experiences are caused by activity in the nervous system
• fill in the gaps

  A) peripheral nervous system

  B) brain

  C) sympathetic nervous system

  
• there are 5 divisions within the nervous system (number answer)
• the divisions within the nervous system

  • the nervous system
  • peripheral nervous system
  • central nervous system
  • brain
  • spinal cord
  • autonomic nervous system
  • somatic nervous system
  • sympathetic nervous system
  • parasympathetic nervous system
• the peripheral nervous system is comprised of all nerves outside CNS, it relays nerve impulses to CNS and back down again
• peripheral nerves throughout the body sense the world around us
• the central nervous system includes the brain and spinal cord
• the central nervous system controls physical movement and regulates homeostatic function - by the brain receiving info via sense organs and sends messages
• the somatic nervous system includes 12 pairs of cranial nerves and 31 pairs of spinal nerves
• cranial nerves emerge from the underside of the brain
• both cranial nerves and spinal nerves are sensory and motor neurons
• the somatic nervous system is involved in reflex actions which allows reflex to occur quickly
• sensory neurons relay messages to the central nervous system
• motor neurons relay info from the central nervous system to other areas of the body
• the autonomic nervous system includes the regulation of the involuntary action (breathing/ heart beat)
• there are 4 main areas within the brain including:

  • cerebrum
  • cerebellum
  • diencephalon
  • brain stem
• the spinal cord relays info between the brain and body, it allows brain to monitor and regulate bodily processes
• the spinal cord is connected through spinal nerves to other parts of the body
• if the spinal cord is damaged the below nerves will be cut off
• the sympathetic nervous system is the full response to emergencies (fight or flight)
• the sympathetic nervous system sends neurons from the SNS to travel to every organ and glands that are preparing body for rapid action when under threat
• the parasympathetic nervous system relaxes the individual once emergency has passed - slows down heart rate
• Structure of the brain

  A) cerebellum

  B) occipital lobe

  C) parietal lobe

  D) frontal lobe

  E) temporal lobe

  
• the frontal lobe is used for thinking, memory, behaviour and movement
• the temporal lobe is for hearing, learning and feelings
• the parietal lobe is for the language and touch
• occipital lobe is responsible for sight
• the cerebellum is responsible for balance and corrdination
• the brain stem is for breathing and regulating temperature and heart rate
• structures of brain

  
• structure of the brain

  A) cerebrum

  B) cerebellum

  C) diencephalon

  D) brain stem