Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Oct 3, 2007
Annals of Medical School discusses how the circulation is different before birth so that blood from the mother can oxygenate the growing fetus, and how this changes as a response to the boost of oxygen when the newborn baby first breathes. www.annalsofmedicalschool.blogspot.com