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THE HUMAN BRAIN

THE HUMAN BRAIN. 3.5 pounds of gelatinous material at the root of everything we do/are. Characterized by sulci ( sulcus ) and gyri ( gyrus ) sulcus —valley gyrus —peak. Divided into hemispheres—right and left—via the longitudinal fissure Cerebrum and cerebellum

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THE HUMAN BRAIN

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  1. THE HUMAN BRAIN

  2. 3.5 pounds of gelatinous material at the root of everything we do/are

  3. Characterized by sulci (sulcus) and gyri (gyrus) • sulcus—valley • gyrus—peak

  4. Divided into hemispheres—right and left—via the longitudinal fissure • Cerebrum and cerebellum • Cerebrum divided into four lobes

  5. Frontal lobe—thinking and motor movement • Parietal lobe—incoming sensory information • Occipital lobe—vision • Temporal lobe—memory and audition

  6. Right hemisphere from the left side sulci and gyri corpus callosum thalamus hypothalamus pituitary

  7. medulla pons cerebellum spinal cord amygdala hippocampus

  8. Another way to talk about the brain is in terms of development. ONTONGENY RECAPITULATES PHYLOGENY HINDBRAIN MIDBRAIN FOREBRAIN

  9. HINDBRAIN—oldest part; buried deep in brain tissue; processes vital functions; consists of the medulla, the pons and the cerebellum • MIDBRAIN—next oldest; processes visual and auditory information; consists of the thalamus and other smaller structures

  10. FOREBRAIN—newest part; cortex and limbic system structures; processes thinking, feelings and motor activity; consists of the four lobes, hypothalamus, amygdala, hippocampus and others

  11. THERE ARE 100 TRILLION NEURONS IN THE BRAIN • WHAT IS A TRILLION?

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