B3- The Brain

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  • Created by: EvieWong
  • Created on: 17-04-18 18:17
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  • The Brain
    • Cerebrum
      • Largest part of the human brain
      • Outer top section of the brain
      • Divided into 4 lobes
      • Associated with higher brain function
        • Thought
        • Consciousness
        • Memory
        • Intelligence
        • Language
    • Pituitary
      • Produces many important hormones
      • Located at the base of the brain
      • Small gland
    • Hypothalamus
      • Involved in maintaining normal body temperature
      • Produces hormones that control the pituitary (gland)
    • Cerebellum
      • Coordinates voluntary movements
        • Speech
        • Coordination
        • Posture
        • Balance
    • Studying Brain Function
      • Problems
        • Can't be certain that the same results would occur when not in the scanner
        • A severely brain damaged person may not be able to give informed consent
        • Studying the brains of people who have died relies on donations for research
      • fMRI Scanners
        • Big tube-like machines
        • Show which parts of the brain of the person inside the scanner are activated
      • If part of the brain was damaged, the effect it has on the patient can tell us about what the damaged part of the brain does
    • Medulla
      • Controls unconscious activities
        • Breathing
        • Heart rate
        • Digestion
      • Located in the brain stem
    • Treating Problems in the Brain
      • E.g.: Injuries to the brain/ spinal cord, tumors, diseases
      • Difficult to treat successfully
        • If a problem occurs in a part of the CNS that's not easy to access
          • E.g.: It's not surgically possible to remove tumors in certain parts of the brain
        • Neurones in the CNS don't readily repair themselves
          • Scientists haven't developed a way to repair nervous tissue in the CNS
        • Treatment may lead to permanent damage
          • E.g.: Surgery to remove a brain tumor could leave surrounding areas permanently damaged

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