Birth stage three, which begins after the birth of the baby, further contractions expel the placenta, amniotic sac, and the remaining portion of the umbilical cord usually within a few minutes. Enormous changes take place in the newborn's circulation to enable breathing in air. In the uterus, the unborn baby is dependent on circulation of blood through the placenta for sustenance including gaseous exchange and the unborn baby's blood bypasses the lungs by flowing through the foramen ovale, which is a hole in the septum dividing the right atrium and left atrium. After birth the umbilical cord is clamped and cut,
The Creation of Adam the brain stem, the frontal lobe, the basilar artery, the pituitary gland and the optic chiasm. Alternatively, it has been observed that the red cloth around God has the shape of a human uterus (one art historian has called it a "uterine mantle") and that the scarf hanging out, coloured green, could be a newly cut umbilical cord. Recently a group of Italian researchers published on "Mayo Clinic Proceedings" an article where the images of the mantle and the postpartum uterus were overlapped. According to Enrico Bruschini (2004), "This is an interesting hypothesis that presents the Creation scene as an