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Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
Ns11 Limbic System
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Ns11 Limbic System

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NS11 …

NS11
Lecture 11 of 63 in the Neuroscience Module

"Limbic System" [Anatomy]

Published in: Health & Medicine, Technology
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  • 1. Limbic System Dr. Skantha Kandiah MBA, MSc (NUI), MB BCh BAO (NUI), LRCP & SI Senior Lecturer in Anatomy and Lecturer in Healthcare Management RCSI
  • 2. Limbic System
    • Cingulate gyrus
    • Hippocampus
    • Fornix
    • Mamillary bodies
    • Septal nuclei
    • Amygdala
  • 3.  
  • 4.  
  • 5.  
  • 6.  
  • 7. FORNIX
    • CONNECTS MAMMILLARY BODIES TO HIPPOCAMPUS
    • Efferent fibres from hippocampus form fimbria
  • 8.  
  • 9.
    • NUCLEUS ACCUMBENS
      • Stimulation – sense of well-being
      • Connection to basal nuclei –
        • motor expression of emotion?
      • SEPTAL AREA – stimulation – sensation like orgasm
        • Destruction of septal area -- rage
  • 10. AMYGDALA
    • At tip of tail of caudate nucleus and anterior horn of lateral ventricle
    • Fear – important for survival
    • ? Overactivity – rage
    • ? Role in phobias
    • Bilateral ablation – timidity, hypersexuality.
  • 11.  
  • 12. HIPPOCAMPUS
    • IMPORTANT FOR MEMORY
    • 3 layers of cells (allocortex)
    • Alzheimer’s disease
      • General cortical degeneration
      • Hippocampal degeneration (bilateral) – cannot form new memories
      • Frontal degeneration – inappropriate behaviour, later -= attention and motivation deficit

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