During pregnancy, the maternal immune system must engage in a fine balancing act: maintaining tolerance to the fetal ...

The fetal pole is the first sign of an embryo in early pregnancy ultrasounds. If the fetal pole doesn't have a heartbeat, it could mean a missed miscarriage. Sometimes, a fetal pole isn't visible ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...

Assistant Professor of Obstetrics and Gynecology, School of Medicine, University of Washington Embryonic development, also known as embryogenesis, is a cornerstone in understanding the origins of life ...