881012-14

881012-14
Caption: Light micrograph of a pyramidal neuron (pyramidal nerve cell) in the mammalian hippocampus. This pyramidal neuron from the hippocampus CA1 region has been stained with the fluorescent dye Lucifer Yellow. The hippocampus pyramidal nerve cell has a triangular cell body with a large primary dendrite (apical dendrite) extending from the apex of the cell body. It also has several dendrites leading from bottom edge of the cell (basal dendrites). A long axon usually extends from this basal region. Dendrites gather information for processing by the cell body. After processing, information is passed on through the cell's axon. The hippocampus has the shape of a curved tube in most mammals. It has shape similar to a seahorse and has localized subdivisions CA1 through CA4. The hippocampus is an extension of the edge of the cerebral cortex. The structures that line the edge of the cortex make up the so-called limbic system, that include the hippocampus, cingulate cortex, olfactory cortex, and amygdala. The hippocampus plays important roles in the consolidation of information from short-term memory to long-term memory and spatial navigation. Other activities governed by the limbic system include memory formation, reproduction, expression of fear, rage, and pleasure.
Magnification*: x40
Type: LM Flurorescence
Copyright 2012 Dennis Kunkel Microscopy, Inc.
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