Illustration of various types of uniovular gemellary pregnancies (true twins); these pregnancies result from a single egg and a single sperm, the fertilized egg divides. Depending on the date of division: Before 4 days: dichorionic pregnancy (2 placentas), diamniotic (two amniotic sacs). From 4 to 8 days: monochorionic pregnancy (1 placenta for 2 fetuses), diamniotic (two amniotic sacs). From 8 to 14 days: monochorionic pregnancy (1 placenta), monoamniotic (one amniotic sac). After 14 days: conjoined twins, 1 umbilical cord (Siamese).
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Details
Creative#:
TOP19632660
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
No
Property Release:
No
Right to Privacy:
No
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