EDELMANN / SCIENCE PHOTO LIBRARY EDELMANN / SCIENCE PHOTO LIBRARY
The human foetus after 11 weeks, showing the umbilical cord connecting the foetus (at the abdomen) with the placenta, whose blood vessels are seen in the background. The role of the placenta is complex: apart from acting as an interface between the foetal & maternal circulations (filtering & exchanging nourishment & waste products), the placenta may be considered as a multiple organ system for the developing foetus. It also assists the mother's body functions by synthesising a range of steroid hormones - similar to those manufactured by the pituitary gland.
Model release not required. Property release not required.