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Types cellulaires et étapes de la différenciation de l'adénohypophyse chez l'embryon de roussette (Scyllium canicula, chondrichthyens)
The identification and distribution of endocrine cells in embryonic adenohypophysis of Seyllium canicula , and chronology of cellular differentiation...
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Structure et ultrastructure des attaches hydranthes-hydrothèques chez les polypes Thecata
The anchoring devices of hydranths to their thecae have been studied in various Thecata families by means of histochemical, histological and electron...
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Observations ultrastructurales sur la parathyroïde de souris
The structure of the mouse parathyroid does not differ essentially from other species studied. However, the glandular cells are characterized through...
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Adaptation morphologique de l'acrorrhage chez Actinia equina L.
The ultrastructural analysis of the acrorhagi of Actinia equina reveals histological adaptations to the specific detachment of this brightly colored...
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Le réseau des cellules folliculo-stellaires et les follicules de l'adénohypophyse du rat (Pars distalis)
Electron microscopic investigation of the rat anterior pituitary reveals, throughout the whole pars distalis, a cellular network composed of...
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Etude cytologique de l'hypophyse du muge, en particulier en relation avec la salinité extérieure
6 different cell types were identified in the pars distalis of the pituitary gland of the marine teleost Mugil auratus L.
1. Erythrosinophilic cells...
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Innervation des cellules du pancréas endocrine du Poisson Téléostéen **phophorus helleri H.
The pancreatic islet tissue of the bony fish **phophorus helleri H. is innervated by amyelinic fibers. Neuroglandular junctions on the islet cells...
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Etude comparative de quelques propriétés physico-chimiques du système tubulaire transverse et du reticulum sarcoplasmique de deux types de fibres musculaires striées: la fibre squelettique rapide de la grenouille et la fibre myocardique ventriculaire du rat
Rat ventricular myocardial fibers and frog toe fast skeletal fibers were examined electron microscopically after Lanthanum nitrate impregnation or...
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Etude au microscope électronique des symbiontes à transmission héréditaire chez quelques insectes Homoptères auchénorhynques femelles
Electron microscope study of symbiotes hereditarily transmitted through the eggs of in Homoptera, shows very different types: yeasts, more or less...
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Mise en évidence par immunofluorescence des cellules à hormones glycoprotidiques dans l'hypophyse d'un Rongeur d'Iran, Ellobius lutescens (Th): cellules gonadotropes et cellules thyréotropes
Glycoprotein-containing cells (thyrotrophic and gonadotrophic cells) have been identified by immunofluorescence reactions, with antibodies to ovine...
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Les phases précoces de la formation des cils et le problème de l'origine du corpuscule basal
Develo** cilia and non-ciliated centrioles are both present in the rat choroid cell studied with the electron microscope. The development of the...
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L'ultrastructure du foie humain lors d'ictéres idiopathiques chroniques
In one case of Dubin-Johnson Syndrom, the Authors call attention to the importance of mitochondrial alterations, which involve more than half of...
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Le complexe pinéal de l'ammocète (Lampetra planeri, Bl.)
Nervous (sensory) pathways of the pineal complex were studied in Lampetra planeri . The following observations were made:
(1) The pineal tract,...
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Action de l'actinomycine D sur la différenciation cellulaire au cours de la régénération de Planaires qui viennent d'éclore
1. We have studied RNA synthesis during regeneration of young hatched Planariang, Polycelis nigra . They regenerate in tap water or in actinomycin D...
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L'ultrastructure de l'adénohypophyse du crapaud Bufo bufo L.
In the toad's adenohypophysis, the glycoprotein containing cells of type II (perivascular basophils) undergo important modifications after surgical...