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High-magnification composite, two-dimensional photomicrograph of the dendritic arbor of a rat central nucleus principal neuron. Only a single branching dendrite is present, and all dendrites are relatively straight, with a few notable local deviations. Inset: High-magnification image of a secondary dendrite showing spine features. The spines are small to medium-sized, densely packed, and frequently mushroom shaped (arrowheads indicate exemplars). Scale bars = 50 μm; 10 μm in inset.
