31.1 MB (3.6 MB compressed)
2166 x 5026 pixels
18.3 x 42.7 cm ⏐ 7.2 x 16.8 in (300dpi)
DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
Synaptic ridges and clefts of the subneural portion of motor end plate. The deep-etching exposes large intramembrane particles in the post-synaptic membrane that are believed to be the acetyl-choline receptors. Transmission electron micrograph.
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