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English[en]
The placenta, a disk-like organ that connects your body’s systems to that of the developing fetus, begins to form and attaches to the uterine wall where the blastocyst is implanted.
Spanish[es]
La placenta, el órgano similar a un disco que conecta los sistemas de tu cuerpo al del bebé, comienza a formarse y se adhiere a la pared uterina donde se implanta el óvulo.

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