HMB200H1 Chapter Notes - Chapter 7: Stria Terminalis, Dentate Gyrus, Temporal Lobe Epilepsy

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15 Mar 2016
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Limbic = border, between structures between diferent structures. Hippocampal formaion typically refers the dentate gyrus (the hippocampus proper) and subicular cortex: located in the temporal lobe of each cerebral cortex. Hippocampus looks like seahorse or ammon"s horn because hippocampi bend in horn of rams. Informaion lows into and through the hippocampus by three principal pathways: Major inputs come from the entorhinal cortex, which in turn communicate inputs from the cingulate, temporal, orbital, and olfactory corices and amygdala to the hippocampus. Amygdala is integraive center is for emoions, emoional behavior and moivaion: coninuous with hippocampus, communicate bidirecionally and contain eferent and aferent ibers. Inputs or aferents to the amygdala via the stria terminalis, ventral amygdalofugal pathway, olfactory stria, and directly from temporal lobe structures. Outputs or eferents from the amygdala via the stria terminalis, ventral amygdalofugal pathway and direct pathways. Ventral amygdalofugal pathway: nucleus accumbens sepi (ventral striatum) Simulaion of amygdala causes intense emoion, such as aggression or fear.

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