Economics,Medicine,Sports: Primitive placenta: The tiny blood vessels ("villi") that make up the primitive placenta deliver nourishment and oxygen to the embryo.

Tuesday, 7 April 2015

Primitive placenta: The tiny blood vessels ("villi") that make up the primitive placenta deliver nourishment and oxygen to the embryo.

http://www.babycenter.com/fetal-development-images-5-weeks

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)