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Limbic System S2M1
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The limbic system consists of what structures and their functions
Hypothalamus - Homeostasis
Olfactory cortex - Olfaction
Hippocampus - Memory
Amygdala - Emotion
"HOME"
What is the general purpose of the Limbic system
Preservation of the specie
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
What is the Allocortex
Portion of the cortex that contains only three layers
- Archicortex (hippocampus)
- Paleocortex (olfactory)
"
All
kids named
Archi
are
Pale
"
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"
What are considered the subcortical components of the Limbic System
Amygdala
Basal Forebrain
What is the role of the Amygdala
Emotion and Drive
Fight or Flight
What does the Amygdala receive inputs from
Visual cortex
Auditory Cortex
Somatosensory cortex
Visceral cortex
Hypothalamus
Ect.
Facial expressions of fear are controlled by
Amygdala
Stimulation of the Amygdala has what effect
Aggression
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
What is the primary function of Cholinergic (Acetylcholine) neurons in the CNS
Attention, Learning, & Memory
Blocking cholinergic projections through drugs causes what effects
Delirium and memory problems
What is the Papez circuit
Hippocampus
Forinx
Mammilary Bodies
Anterior Nucleus of the Thalamus
Cingulate Cortex
Parahippocampal gyrus
Entorhinal Cortex
Hippocampus
In the Papez circuit, what is the projection that circumvents the Fornix
Hippocampus
Parahippocampal Gyrus
Hippocampus
What is considered the decision center
Hippocampus
Neocortex
The normal 6 layer cortex, makes up 95% of the brain
The Ventral Tegmental Area is found to trigger what type of responses
Love (Romantic)
Addiction
Motivation
Eupohoria
"TV is LAME"
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
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
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
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
Author
lancesadams
ID
87924
Card Set
Limbic System S2M1
Description
Neuro
Updated
8/12/2011, 4:20:52 PM
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