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Slideshow: Umbilical Cord, Placenta & More

The Coiled Umbilical Cord

#156, Slide 23 of 35

9 weeks

The Coiled Umbilical Cord

From The Biology of Prenatal Development.

Note:

If you watch the movie carefully, you can see the umbilical cord pulsating with each beat of the fetal heart.

Label Key:

1. umbilical vein

2. umbilical arteries

All ages referenced to fertilization, not last menstrual period.

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