Summary
The sinus gland of Carcinus maenas consists of the swollen axonal endings of the neurosecretory cells of the major ganglia and acts as a storage release centre for the membrane bound neurosecretory material. These neurosecretory granules fall into five different types based on size and electron density. Their contents are released by exocytosis of the primary granules or smaller units budded from the primary granules.
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I thank Professor E. Naylor for his constant advice and Professor E. W. Knight-Jones, Department of Zoology, University College, Swansea, for the provision of laboratory facilities. I am grateful to the Science Research Council for the financial support. Finally, I thank the Electron Microscope Unit, Southampton General Hospital, where the work was completed.
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Smith, G. The ultrastructure of the sinus gland of Carcinus maenas (Crustacea: Decapoda). Cell Tissue Res. 155, 117–125 (1974). https://doi.org/10.1007/BF00220288
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DOI: https://doi.org/10.1007/BF00220288