41 — 6 (44) 2022 — Tastanova G.E., Ferruh Yusel, Ishigov I.A., FEATURES OF THE MORPHOLOGY OF TISSUE STRUCTURES OF THE PLACENTA IN THE II TRIMESTER OF PHYSIOLOGICAL GESTATION

Tastanova G.E., Tashkent State Dental Institute

Ferruh Yusel, Eske Sheher Оsmangazi

Ishigov I.A., International Kazakh-Turkish University named after H.A. Yasawi

Resume

The second trimester of physiological pregnancy is characterized by morphological transformations of all tissue structures of the placenta, especially the terminal villi, and the final formation of the feto-placental system. The object of the study were pieces of placenta in terms of 22-24 weeks. The pregnancy proceeded without obvious pathological changes and was terminated for social reasons. The villous chorion histologically in the placenta is represented by stem, intermediate immature, intermediate differentiated and terminal villi. The chorionic plate of the placenta is covered with amnion and consists of a single-layer cubic (rarely cylindrical) epithelium, basement membrane, compact fibroplastic and spongy layers, which are based on large arteries and veins. The cross-sectional area of the terminal villi (epithelium + stroma) is 22600 ± 2450 mkm²., while the area occupied by the stroma and epithelium is 17700±870 and 3900±410 mkm². The area of vessels in the average villus during morphometric studies is 3050 ± 220 mkm²

Key words: placenta, physiological pregnancy, tissues, vessels, morphology, villi

First page

220

Last page

223

For citation: Tastanova G.E., Ferruh Yusel, Ishigov I.A., FEATURES OF THE MORPHOLOGY OF TISSUE STRUCTURES OF THE PLACENTA IN THE II TRIMESTER OF PHYSIOLOGICAL GESTATION //New Day in Medicine 6(44)2022 220-223 https://clck.bar/L0d9ca

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