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  • Title: Electron microscopic investigation of a giant neuron identified in the right parietal ganglion of Lymnaea stagnalis (L).
    Author: Pogorelaya NK, Elekes K, Kiss I.
    Journal: Acta Biol Acad Sci Hung; 1977; 28(4):451-60. PubMed ID: 616699.
    Abstract:
    The ultrastructure of a giant neuron (GRP1) identified in the right parietal ganglion of Lymnaea stagnalis was examined. The results suggest that GRP1 is a neurosecretory cell. The perikaryon is characterized by many neurosecretory-like granules of variable electron density. The average diameter (longer axis) of the granules was 1850 A. Furthermore highly-developed rough endoplasmic reticulum and Golgi complex were observed in the cytoplasm. Synapse-like structures were often found on the somatic membrane, but typical, true synaptic endings were not seen.
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