Étude quantitative du cœur chez deux embryons humains jumeaux de 14 mmV-C (stade 18)

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Abstract
Two hearts of human twin embryos at 14 mm C-R (stage 18) were studied by means of light microscopy and quantitative methods. The serial sections of the embryos, 5 µm thick, were projected by using a microprojector for the measurement of the cardiac diameters and cardiac profile areas.The calculated heart volumes were 8.34 and 8.45 mm3, respectively. Cardiac volume is more accurate than linear.measurement to establish quantitative development of the heart. It can also be considered an accessory index for embryonic classification.

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