Fig. 5. SEM of a stage 4 embryo in vitro attached to a monolayer culture of endometrial cells. Notice the numerous microvilli on the surface of the mural trophoblast. (From: Lindenberg, 1991. Reproduced with permission of the publisher, Elsevier.)
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Fig. 5. SEM of a stage 4 embryo in vitro attached to a monolayer culture of endometrial cells. Notice the numerous microvilli on the surface of the mural trophoblast. (From: Lindenberg, 1991. Reproduced with permission of the publisher, Elsevier.) |