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Brain cerebrum

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Brain cerebrum

  1. 1. Brain, part 1 (Cerebrum): page 10
  2. 2. Brain, part 1 (Cerebrum): page 10• Cerebrum: largest and most obvious portion of the brain
  3. 3. Brain, part 1 (Cerebrum): page 10• Cerebrum: largest and most obvious portion of the brain• Two hemispheres separated by the longitudinal fissure. Connected by a band of white fibers called the corpus callosum
  4. 4. Brain, part 1 (Cerebrum): page 10• Cerebrum: largest and most obvious portion of the brain• Two hemispheres separated by the longitudinal fissure. Connected by a band of white fibers called the corpus callosum• Consists of white matter covered by a thin layer of gray matter, the cerebral cortex
  5. 5. Brain, part 1 (Cerebrum): page 10• Cerebrum: largest and most obvious portion of the brain• Two hemispheres separated by the longitudinal fissure. Connected by a band of white fibers called the corpus callosum• Consists of white matter covered by a thin layer of gray matter, the cerebral cortex• Cerebral cortex is what makes us “human”. Controls memory, language, reasoning, personality, and movement
  6. 6. Brain, part 1 (Cerebrum): page 10• Cerebrum: largest and most obvious portion of the brain• Two hemispheres separated by the longitudinal fissure. Connected by a band of white fibers called the corpus callosum• Consists of white matter covered by a thin layer of gray matter, the cerebral cortex• Cerebral cortex is what makes us “human”. Controls memory, language, reasoning, personality, and movement• Surface is wrinkled, with “mountains” called gyri and “valleys” called sulci
  7. 7. Cerebral hemispheres• Hemispheres are similar in structure, but not in function.
  8. 8. Cerebral hemispheres• Hemispheres are similar in structure, but not in function.• In right handed people, the left hemisphere is involved in reasoning, language, and math. The right hemisphere is involved in movement, emotion, art, and music
  9. 9. Cerebral hemispheres• Hemispheres are similar in structure, but not in function.• In right handed people, the left hemisphere is involved in reasoning, language, and math. The right hemisphere is involved in movement, emotion, art, and music• In left handed people these sides are reversed
  10. 10. Cerebral hemispheres• Hemispheres are similar in structure, but not in function.• In right handed people, the left hemisphere is involved in reasoning, language, and math. The right hemisphere is involved in movement, emotion, art, and music• In left handed people these sides are reversed• Rarely, neither side dominates, which can lead to learning disabilities
  11. 11. Lobes1. Frontal Lobe: Personality, behavior, emotion, intellectual functions. The precentralgyrus is along the posterior edge and contains the somatomotor cortex, which allows conscious control of the skeletal muscles. Contains Broca’s area, which controls muscles used for speech.
  12. 12. 2. Parietal Lobe: Sensation. The postcentralgyrus is along the anterior edge and contains the somatosensory cortex, which receives sensory input from receptors in the skin and muscles. Also contains gustatory cortex, which receives input from the taste buds
  13. 13. 3. Occipital Lobe: Vision. Receives signals from the eye and analyzes them
  14. 14. 4. Temporal Lobe: Hearing, smell. Receives auditory input from the ear and analyzes it. Contains olfactory cortex, which receives input from smell receptors
  15. 15. 5. Limbic lobe: Deep to the other lobes. Plays a role in emotions, including pain, pleasure, affection, and anger. Controls involuntary behavior related to survival. Also involved in memory

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