The Cerebral Cortex

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The Cerebral Cortex
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Cerebral Cortex

• Cerebral Cortex the interconnected neural cells
  that form the cerebral hemispheres
• This is the bodys ultimate control and
  information-processing center
• The cortex covers the lower-level structures
• The wrinkles allow more brain tissue to be packed
  into the skull
• 30 billion nerve cells in 1/8 inch of brain tissue

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Cerebral Cortex Contd

• Longitudinal fissure the crack that runs from
  the front to the back of the cerebral cortex,
  separating the left and right hemispheres
• Corpus callosum band of neural tissue in the
  longitudinal fissure that allows both sides of
  the brain to communicate with each other

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Brain Lobes

• Frontal lobe controls your most advanced
  cognitive abilities, such as judgment and
  planning
• The frontal lobes rational abilities connects
  with regions of the limbic system that controls
  emotion

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Brain Lobes Contd

• Parietal Lobes association areas region for
  general processing and mathematical reasoning
• Occipital Lobes visual processing centers of
  the brain
• Temporal Lobes area of the brain that deals
  with auditory cortex and processes sound

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Brain Lobes Contd

• Motor Cortex strip of tissue along the back
  edge of the frontal lobe
• Different parts of the motor cortex control
  different parts of your body
• The motor cortex is cross wired
• The left side of the motor cortex controls the
  right side of your body, and the right side of
  the brain controls the left

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Brain Lobes Contd

• Somatosensory cortex area at the front of the
  parietal lobes that registers and processes the
  bodys sensations
• Your somatosensory cortex devotes more brain
  tissue to areas of your body that are more
  sensitive to touch
• Ex. Fingertips vs. Arms

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Brocas Area

• This is located in the Frontal Lobe, on the
  left-hand side
• It is involved with expressive language
• If Brocas area has damage, a person will be able
  to form ideas, but not communicate them with
  speech
• Strokes can lead to this damage

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Wernickes Area

• This is also located in the left-hand side of the
  brain, but in the temporal lobe
• This helps control receptive language
• Your ability to understand what someone says, all
  language comprehension

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Brain Plasticity

• This is the ability for the tissue of the brain
  to assume new functions
• If an area of the brain is damaged, other areas
  of the brain can reorganize to assume the
  responsibility of the damaged area.
• More plastic in younger years.

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How a cats brain works
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