ADAM Health 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

Review Date: 10/19/2007
Reviewed 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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