Limbic System S2M1

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Limbic System S2M1
2011-08-12 12:20:52
Ross S2M1

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  1. The limbic system consists of what structures and their functions
    • Hypothalamus - Homeostasis
    • Olfactory cortex - Olfaction
    • Hippocampus - Memory
    • Amygdala - Emotion
    • "HOME"
  2. What is the general purpose of the Limbic system
    Preservation of the specie
  3. What nuclei in the Limbic system act as a relay station
    • Anterior Nucleus of the Thalamus
    • Dorsomedial Nucleus of the Thalamus
    • Habenular Nucleus of the Epithalamus
  4. What is the Allocortex
    • Portion of the cortex that contains only three layers
    • - Archicortex (hippocampus)
    • - Paleocortex (olfactory)
    • "All kids named Archi are Pale"
  5. What is the Juxtallocortex or Periallocortex
    • Portion of the cortex that contains only 4-5 layers instead of the normal 6
    • - Entorhinal cortex
    • - Parahippocampal gyrus
    • - Cingulate cortex
    • - Orbitofrontal cortex
    • "COPE"
  6. What are considered the subcortical components of the Limbic System
    • Amygdala
    • Basal Forebrain
  7. What is the role of the Amygdala
    • Emotion and Drive
    • Fight or Flight
  8. What does the Amygdala receive inputs from
    • Visual cortex
    • Auditory Cortex
    • Somatosensory cortex
    • Visceral cortex
    • Hypothalamus
    • Ect.
  9. Facial expressions of fear are controlled by
  10. Stimulation of the Amygdala has what effect
  11. Removing or creating a lesion of the Amygdala produces
    • Kluver-Bucy Syndrome
    • Wild and aggressive animals become placid, display hyper- and inappropriate sexual behavior
    • Placing feces and other inappropriate items in their mouth only recognizing them after tasting them
  12. What is the primary function of Cholinergic (Acetylcholine) neurons in the CNS
    Attention, Learning, & Memory
  13. Blocking cholinergic projections through drugs causes what effects
    Delirium and memory problems
  14. What is the Papez circuit
    • Hippocampus
    • Forinx
    • Mammilary Bodies
    • Anterior Nucleus of the Thalamus
    • Cingulate Cortex
    • Parahippocampal gyrus
    • Entorhinal Cortex
    • Hippocampus
  15. In the Papez circuit, what is the projection that circumvents the Fornix
    • Hippocampus
    • Parahippocampal Gyrus
    • Hippocampus
  16. What is considered the decision center
  17. Neocortex
    The normal 6 layer cortex, makes up 95% of the brain
  18. The Ventral Tegmental Area is found to trigger what type of responses
    • Love (Romantic)
    • Addiction
    • Motivation
    • Eupohoria
    • "TV is LAME"
  19. What midbrain reticular formation nuclei are considered to be part of the Limbic midbrain area
    • Ventral tegmental area
    • Interpeduncular nuclei
    • Others that are directly connected limbic structures or influenced by the Hypothalamus
  20. The Limbic system has an important function in normal memory in what respect
    It identifies certain events according to their significance to survival and success
  21. The Limbic system mediates between
    The needs of the Hypothalamus and the plans of the Neocortex to coordinate the most important needs at the moment
  22. What is the route of communication from the Hippocampus to the Hypothalamus in the Limbic system
    • Hippocampus
    • Basal Forebrain
    • Habenula Nucleus
    • Limbic midbrain area
    • Hypothalamus