There is an active

Week 8. Earlier floor appearance was impossible to determine. Now under the influence of the Y-chromosome genes in males formed male gonads (testes) and begin to produce testosterone - the male sex hormone. And girls vulva until changed.

Week 9. Improved structure of the face, formed the hard palate, mouth. Continue to develop the internal organs, especially intensively liver, and in fact before the 20th week is the liver - the main hematopoietic organ of the child. There is an active muscle growth on the arms and legs, ligamentous apparatus. Now the fetus is able to move.

Size of the embryo by the end of the second month - 3 cm

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