Sex differences in regional specialisation across the placental surface

SH Alwasel, AH Harrath, WM Aldahmash, Z Abotalib… - Placenta, 2014 - Elsevier
There may be regional specialisation in structure and function across the placental surface.
In Riyadh, Saudi Arabia, the length and the breadth of the placental surface at birth were
highly correlated, but the breadth was more closely associated with the size of the baby. To
replicate this we studied 321 pregnant Saudi women in the town of Baish. We measured the
size of the newborn babies and their placentas. The association of the length and breadth of
the placental surface on the baby's body size differed in boys and girls. Among boys the …