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Neurosecretion and Granules in Neurones of the Brain of the Leech

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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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Author notes

  1. IRVINE R. HAGADORN: National Science Foundation Predoctoral Fellow in Biology.

Authors and Affiliations

  1. Department of Zoology and its Cancer Research Genetics Laboratory, University of California, Berkeley, 4

    IRVINE R. HAGADORN & RICHARD S. NISHIOKA

Authors
  1. IRVINE R. HAGADORN
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  2. RICHARD S. NISHIOKA
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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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