LES ESPACES PERIVASCULAIRES AU COURS DE L'ORGANOGENESE DU LOBE CEPHALIQUE DE LA PARS DISTALIS DE L'HYPOPHYSE DU POULET

Translated title of the contribution: The perivascular spaces during organogenesis of the cephalic lobe of the chick hypophyseal pars distalis

L. Roncali, M. Bertossi, D. Ribatti

Research output: Contribution to journalArticlepeer-review

Abstract

The modifications of the extent and ultrastructure of the perivascular spaces during the development of blood vessel networks in the pars distalis of the adenohypophysis have been analyzed in normally developing chick embryos, from the 7th incubation day to hatching. The quantitative evaluation of the changes undergone by the perivascular spaces, carried out on semithin sections, showed that their extent gradually decreases and that this reduction is paralleled by an increment of the extent of the capillary bed. The ultrastructural study of the hypophyseal sinusoids allowed a precise determination of the size and the minute morphology of these spaces, which attain their definitive characters only during the late incubation stages, when the endothelial basement lamina forms.

Translated title of the contributionThe perivascular spaces during organogenesis of the cephalic lobe of the chick hypophyseal pars distalis
Original languageFrench
Pages (from-to)489-497
Number of pages9
JournalBulletin de l'Association des Anatomistes
Volume65
Issue number191
Publication statusPublished - 1981

ASJC Scopus subject areas

  • Medicine(all)

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