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Ultrastructure of noninfected explanted primary rat neurons. (A and B) Cross sections of primary neurons at day 5 after removal from the SCG. A, axon; CB, cell body; N, nucleus; C, cytoplasm; GC, growth cone. (C) Growth cone (GC) attaching to a cell body with possible synapses (black arrows). Bars: 5 μm in panel A, 1.5 μm in panel B, and 500 nm in panel C.
