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1. WERNICKE’S AREA (22)

      -Area for language comprehension.
   Posterior 3rd of superior temporal gyrus,a
    surrounding rim of inferior parietel & mid
    temporal cortex.
    FUNCTION :Transform sensory input into neural
    word representation.
               Establish distributed assoc that give
    word its meaning.
2.BROCA’S AREA (44)
   Anterior pole of language network.
   Posterior part of inferior frontal gyrus $ a
    surrounding rim of prefrontal heteromodal
    cortex.
   FUNCTION: Transform neural word
    representation into articulatory sequence
                sequencing function-ordering
    of words into sentences
3.ANGULAR GYRI

   Lower part of anterior parietal lobe
   FUNCTION : feeds visual information
    conveyed by words from a book into
    wernickes-meaning out of visually
    percieved words.
4.ARCUATE FASCICULUS
   Information passes from wernickes to
    brocas.


     5.PRIMARY MOTOR
    CORTEX
   Signals from brocas received to ctrl
    speech muscles.
6.PRIMARY AUDITORY AREA
   In superior temporal gyrus
   Reception of sound signals


    7.PRIMARY VISUAL AREA

   In occipetal lobe
   Initial receptive area for words from visual field
HEARING N SPEAKING

    SOUND SIGNALS

    PRIMARY AUD AREA

   WERNICKES AREA
           arcuate fasciculus
    BROCAS AREA

  CRANILA N NUCLEI(PONS MEDULLA)
  ANT HORN CELLS IN SP CORD
              facial n cranil n 9 10 12
    SPEECH MUSCLES
READING N SPEAKING

  PRIMARY VISUAL AREA

    ANGULAR GYRUS

     WERNICKES
   Hemispherical dominance-lt hemisphere in
    majority
    few-rt hemisphere n in some no
    dominance
Speech centers

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Speech centers

  • 1.
  • 2. 1. WERNICKE’S AREA (22) -Area for language comprehension.  Posterior 3rd of superior temporal gyrus,a surrounding rim of inferior parietel & mid temporal cortex. FUNCTION :Transform sensory input into neural word representation. Establish distributed assoc that give word its meaning.
  • 3. 2.BROCA’S AREA (44)  Anterior pole of language network.  Posterior part of inferior frontal gyrus $ a surrounding rim of prefrontal heteromodal cortex.  FUNCTION: Transform neural word representation into articulatory sequence sequencing function-ordering of words into sentences
  • 4.
  • 5. 3.ANGULAR GYRI  Lower part of anterior parietal lobe  FUNCTION : feeds visual information conveyed by words from a book into wernickes-meaning out of visually percieved words.
  • 6. 4.ARCUATE FASCICULUS  Information passes from wernickes to brocas. 5.PRIMARY MOTOR CORTEX  Signals from brocas received to ctrl speech muscles.
  • 7. 6.PRIMARY AUDITORY AREA  In superior temporal gyrus  Reception of sound signals 7.PRIMARY VISUAL AREA  In occipetal lobe  Initial receptive area for words from visual field
  • 8. HEARING N SPEAKING SOUND SIGNALS PRIMARY AUD AREA WERNICKES AREA arcuate fasciculus BROCAS AREA CRANILA N NUCLEI(PONS MEDULLA) ANT HORN CELLS IN SP CORD facial n cranil n 9 10 12 SPEECH MUSCLES
  • 9. READING N SPEAKING PRIMARY VISUAL AREA ANGULAR GYRUS WERNICKES
  • 10. Hemispherical dominance-lt hemisphere in majority few-rt hemisphere n in some no dominance