Abstract
EXAMINATION of established neurosecretory strucfores with the electron microscope reveals characteristic cytoplasmic structures: the elementary neurosecretory granules. These granules are usually electron-dense and range in diameter from about 1000 Å. to about 3000 Å. Mean granule diameters differ from cell to cell in the same and in different species; but the fully formed granules are of relatively constant size for each cell type.
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HAGADORN, I., NISHIOKA, R. Neurosecretion and Granules in Neurones of the Brain of the Leech. Nature 191, 1013–1014 (1961). https://doi.org/10.1038/1911013a0
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DOI: https://doi.org/10.1038/1911013a0
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