MICROSCOPIC AND ULTRASTRUCTURAL CHARACTERISTICS OF CELLULAR AND FIBRILLAR STRUCTURES PARTICIPATING IN THE ORGANIZATION OF DURA MATER OF THE HEAD IN DOMESTIC GEESE
DOI:
https://doi.org/10.34921/amj.2024.1.022Keywords:
dura mater, dense irregular connective tissue, biological barrier, ultrastructure, transmission electron microscopeAbstract
The article provides information about the histological and ultrastructural studies of the cellular and fibrillar structures involved in the organization of dura mater of the brain of domestic geese. Araldite-Epon blocks were prepared from the pieces were obtained from the meninges according to the accepted protocols for electron microscopy. Semi- and ultrathin sections were taken from these blocks on a Leica EM UC7 ultratome (Germany) were examined by means of light (Primo Star – Zeiss) and electron (JEM-1400 – Japan) microscopes respectively. The obtained data show that the dura mater of the brain in domestic geese is composed of cellular and fibrillar structures typical of dense irregular connective tissues. The main goal of the research work was to elucidate whether the boundary cellular layer of the dura mater has a biological barrier function in domestic geese. The fact that the border cells of dura mater of the brain of domestic geese do not form a continuous layer and there are no ultrastructurally tight connections between them, regardless of the area where their cellular elements are located, is a reason to say that there is no biological barrier at the level of the described membrane.
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