Abstract
ACCORDING to Mazzi1, Bargmann2, and Scharrer3 the diencephalic-neurohypophysis system of Petromyzontes, in principle, corresponds to that of the gnatho-stomous vertebrates. The Gomori-positive neuro-secretory material which originates in one part of the cells of the nucleus preopticus continues alongside the fibres of the tractus preopticus-hypophyseus into the infundibulum. The enlarged caudal part of the infundibulum—which is found over the meta-adeno-hypophysis—is named ‘neurohypophysis’2. Kramer and Schreuers4 observed that the neurosecretory material which is stored up during the larval stage disappears during and after metamorphosis (Lampetra planeri).
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References
Mazzi, V., Riv. Biol., 44, 429 (1959).
Bargmann, W., Z. Zellforsch., 38, 275 (1959).
Scharrer, E., Verh. Anat. Ges., 51, Vers. 5 (1953).
van de Kramer, J. C., and Schreuers, A. F., Z. Zellforsch., 49, 605 (1959).
Mazzi, V., Arch. Zool. Ital., 37, 445 (1952).
Speidel, C. C., Carnegie Inst. Wash., 13, 1 (1919).
Hild, W., Z. Zellforsch., 35, 33 (1950).
Gaupp, R., Z. Neur., 160, 357 (1938); 165, 273 (1939).
Bargmann, W., and Jacob, K., Z. Zellforsch., 36, 556 (1952).
Gersch, M., Zool. Anz., Supp., 22, 40 (1959).
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STERBA, G. Distribution of Nerve Cells with Secretory-like Granules in Petromyzontes. Nature 193, 400–401 (1962). https://doi.org/10.1038/193400a0
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DOI: https://doi.org/10.1038/193400a0
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