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Medical Encyclopedia

8.5 week fetus

At 8.5 weeks:

• the embryo now resembles a human
• facial features continue to develop
• beginnings of external genitalia form
• anal passage opens, but the rectal membrane is intact
• circulation through the umbilical cord is well developed
• long bones begin to form

Update Date: 10/19/2007

Updated by: Deirdre O’Reilly, MD, MPH, Neonatologist, Division of Newborn Medicine, Children’s Hospital Boston and Instructor in Pediatrics, Harvard Medical School, Boston, Massachusetts. Review Provided by VeriMed Healthcare Network.

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