The brain

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Transcript

  • 1. The Brain
    Chapter 2
  • 2. The Brain- older structures
    Brainstem-oldest and innermost region
    Medulla- the control center for your heartbeat and breathing
    Crossover point- most nerves to and from each side of the brain connecting to the body’s opposite side
    Thus, the right brain controls the left side of the body and vice versa
    Thalamus- sits on the top of the brain stem
    Receives info from all senses except smell
  • 3.
  • 4. The Brain
    Cerebellum- means “little brain”
    How much time has passed since you woke up?
    How’s your mood?
    Helps you judge time, discriminate sounds and textures, and control your emotions
    Coordinates voluntary movement
    Helps to process and store memories for things we cannot consciously recall
  • 5. The Limbic System
    Amygdala
    Plays a role in emotions
    Mostly aggression and fear
    Hypothalamus
    Influence hunger, thirst, body temperature, and sexual behavior
    Read pg 38
  • 6. Cerebral Cortex
    Cerebral Cortex- thin layer of neural cells that cover the cerebrum (two halves of the brain)
    Body’s ultimate control and information processing center
    Enables you to perceive, think, and speak
  • 7. Cerebral Cortex
    Structure of the cortex
    Frontal lobe- involved in speaking and muscle movements and in making plans and judgment
    Parietal lobe- receives sensory input for touch and body position
    Occipital lobe- receive info from the visual fields
    Temporal lobe- receive info from the ears (hearing)
    Read pg 42-43
  • 8. Structure of the cortex
  • 9. Two halves of the brain