Autor: |
Charlier, Philippe, Coppens, Yves, Hassin, Jacques |
Předmět: |
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Zdroj: |
Journal of Maternal-Fetal & Neonatal Medicine; Feb 2022, Vol. 35 Issue 4, p806-808, 3p |
Abstrakt: |
Why do actual females have a 9-months-pregnancy? Here, we hypothesize that the pregnancies of prehuman species were longer than currently (10 or 11 months), and that anatomical and metabolic changes, by increasing the in-utero size of the fetal brain, selected groups with premature delivery, low-calcified and/or not welded cranial vault bones (permitting deformation during the expulsion), until reaching a current pregnancy duration of 9 months. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
Externí odkaz: |
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