DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Brightfield light micrograph of pyramidal neurons (pyramidal nerve cells) in the mammalian hippocampus. These pyramidal neurons from the hippocampus CA1 region have been stained with the electron dense marker horseradish peroxidase (HRP). 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 (basal) edge of the cell. One 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 plays important roles in the consolidation of information from short-term memory to long-term memory and spatial navigation. Neurons are cells of the nervous system that are specialized to carry messages through an electrochemical process. Magnification: x80 when shortest axis printed at 25 millimetres.
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