Atlas of Ultrastructural Neurocytology
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1.6. Chemical Synapses

Fig. 1.6.1. The darkly stained postsynaptic densities of synapses are in contrast with all other, much lighter structures. Densities appearing to be doubled (asterisks), are in fact, when three-dimensionally reconstructed, parts of one fenestrated (perforated) density. Scale = 1 µm. (Mouse, neocortex.)

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