The brain

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The brain

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

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