Scanning electron microscope photos of human placental cells in an artificial growth medium, a fibrous-bed bioreactor. The cells cling to polyester fibers. Photos courtesy of the Laboratory of Perinatal Medicine, Department of Obstetrics and Gynecology, Ohio State University.

Placnta1 -- Artificial placenta, magnification 5252X.

Placnta2 -- Artificial placenta, magnification 2626X.

Placnta3 -- Artificial placenta, magnification 682X

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