50.1 MB (4.5 MB compressed)
3742 x 4677 pixels
31.8 x 39.6 cm ⏐ 12.5 x 15.6 in (300dpi)
CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Human embryo. Illustration of human embryo development, 39 to 44 days after fertilisation. During this time the nervous system, limbs and organs are developing. The external genitalia begin to appear. The amniotic sac (blue) surrounds the embryo. The placenta forms hair-like projections (villi) that extend into the wall of the uterus.
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