45 day old human embryo
45 day old human embryo within an intact amnion (innermost fetal membrane) in an opened chorion (outermost fetal membrane). During the seventh week the elbows and toes become visible, nipples and hair follicles form, and all essential organs have begun to form. (Note the yolk sac at the lower right.)
Size: 3840px × 2728px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 45, amnion, black, bw, chorion, day, development, embryo, embryonic, fetal, human, medical, membrane, period, sac, white, yolk
