[Age and changes in the structure of the neurohypophysis of the sterlet, Acipenser ruthenus L].
Identifieur interne : 000877 ( Ncbi/Merge ); précédent : 000876; suivant : 000878[Age and changes in the structure of the neurohypophysis of the sterlet, Acipenser ruthenus L].
Auteurs : Iu V. Altuf'EvSource :
- Ontogenez [ 0475-1450 ] ; 1977.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Fishes, Pituitary Gland, Posterior.
- Age Factors, Animals, Female, Male.
Abstract
The results are given of histophysiological study of neurohypophysis in sexually mature sterlets (Acipenser ruthenus L.) of different age. An attention is paid to the age morphological changes of neurohypophysis and, in particular, to the number, size and topography of large and giant widenings of neurosecretory fibers, so-called Gerring bodies. The relation between the frequency of Gerring bodies and the age of fishes was followed. A suggestion is put forward to the effect that the appearance of Gerring bodies, widenings of axons of highly differentiated and strongly "weared" neurosecretory cells, is due to frequency of stress situations in ontogenesis.
PubMed: 882241
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pubmed:882241Le document en format XML
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