Parts of the brain

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Parts of the brain

  1. 1. Parts of the Brain Chapter 6 Section 2
  2. 2. Hindbrain <ul><li>Rear base of skull </li></ul><ul><li>Basic processes of life </li></ul><ul><li>Includes: </li></ul><ul><ul><li>Cerebellum </li></ul></ul><ul><ul><ul><li>Picture favorite athlete with bells on </li></ul></ul></ul><ul><ul><li>Medulla </li></ul></ul><ul><ul><ul><li>Medals on heart and lungs </li></ul></ul></ul><ul><ul><li>Pons </li></ul></ul><ul><ul><ul><li>Relaxing pond </li></ul></ul></ul>
  3. 3. Midbrain <ul><li>Medulla and Pons </li></ul><ul><li>Reticular Activating System (RAS) </li></ul><ul><ul><li>Alerts brain of signals </li></ul></ul><ul><ul><li>Think about if you were napping and someone tickled you </li></ul></ul>
  4. 4. Forebrain <ul><li>Covers brain’s central core </li></ul><ul><li>Outer layer = cerebral cortex </li></ul><ul><li>Inner layer = cerebrum </li></ul><ul><li>Includes the limbic system </li></ul><ul><ul><li>Thalamus </li></ul></ul><ul><ul><li>Hypothalamus </li></ul></ul><ul><ul><li>Hippocampus </li></ul></ul><ul><ul><li>Amygdala </li></ul></ul>
  5. 5. Limbic System <ul><li>Thalamus </li></ul><ul><ul><li>Hal and Amos directors of traffic </li></ul></ul><ul><li>Hypothalamus </li></ul><ul><ul><li>Hypo the Llamas </li></ul></ul><ul><li>Amygdala </li></ul><ul><ul><li>Look out a MIG! </li></ul></ul><ul><li>Hippocampus </li></ul><ul><ul><li>The Hippo who forgot his compass and can’t find his way home </li></ul></ul>
  6. 6. Lobes of the Brain <ul><li>http://www.pbs.org/wnet/brain/3d/index.html </li></ul>
  7. 7. Left and Right Hemispheres <ul><li>Connected by Corpus Callosum </li></ul><ul><li>Left hemisphere controls right side and right hemisphere controls left side </li></ul><ul><ul><li>Left = language, logic, logarithms (math) </li></ul></ul><ul><ul><li>Right = visual and spatial Relations, Recognizing patterns, aRt, Rhumba(music) </li></ul></ul><ul><ul><li>Band of fibers that connect the cerebral hemispheres </li></ul></ul><ul><ul><li>2 hemispheres communicate </li></ul></ul>
  8. 8. Split Brain Operations <ul><li>Stops violent seizures </li></ul>
  9. 9. Accidents – Phineas Gage
  10. 10. Methods <ul><li>Recording – EEG </li></ul><ul><li>Stimulating </li></ul><ul><ul><li>Determine what functions different parts perform and can determine where the problem lies </li></ul></ul><ul><ul><li>Pain relief </li></ul></ul><ul><li>Lesioning </li></ul><ul><ul><li>Performed on Rhesus monkeys </li></ul></ul><ul><li>Imaging </li></ul>
  11. 11. Imaging <ul><li>CAT – Computerized Axial Tomography </li></ul><ul><ul><li>Radiation </li></ul></ul><ul><li>PET – Positron Emission Topography </li></ul><ul><ul><li>Radioactive solution injected – active neurons absorb radiation </li></ul></ul><ul><li>MRI - Magnetic Resonance Imaging </li></ul><ul><ul><li>Shows activity and structure – radio frequencies </li></ul></ul><ul><li>FMRI – Functional Magnetic Resonance imaging </li></ul><ul><ul><li>Observe functions and structures </li></ul></ul><ul><ul><li>No radio frequencies – based on blood oxygen levels </li></ul></ul>
  12. 12. Imaging <ul><li>http://www.pbs.org/wnet/brain/scanning/index.html </li></ul>

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