Possible sites of release of neurosecretory granules in the sinus gland of the crayfish, Orconectes nais.
D000818:Animals; D001369:Axons / Q000166:cytology*; D003445:Crustacea / Q000166:cytology*; D003594:Cytoplasmic Granules; D006652:Histological Techniques; D008854:Microscopy, Electron; D009411:Nerve Endings; D009489:Neurosecretion