Iu I Senchik

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The preoptic neurosecretory cells (NSC) in sexually mature female Cyprinus carpio L. have been studied with electron microscope in winter. Separate weakly differentiated NSC and differentiated NSC of small and mean size are localized in the ventral part of Nucleus preopticus. The big highly differentiated NSC are mostly localized in the dorsal part of(More)
The morphometrical and electron microscopic analysis of secretory granules in the perikaryons of neurosecretory cells of the supraoptic and paraventricular nuclei in male rats and mice has shown than in the cells of these nuclei in both species of animals there occur secretory granules of the same kind and size. Therefore this method fails to determine(More)
The ultrastructure of synaptic endings of the neurosecretory cells of the nucleus preopticus was examined in adult Cyprinus carpio L. Two of synpatic endings occur: type I--small agranular vesicles and large granular vesicles, type II--only agranular vesicles. The functioning of the nucleus preopticus neurosecretory cells in Cyprinus carpio L is presumably(More)
Three layers are tentatively recognized in the wall of a blood capillary of nucleus praeopticus (NP) of the carp, Cyprinus carpio L: the inner layer--endothelium, the middle layer--basement membrane with pericytes, and the outer broken layer containing mostly leucocytes and fibroblast-like cells. 1). The plasmalemma of the neurosecretory cells (NSC) makes a(More)