Fig. 52. Very high power TEM of a tight junction (TJ) and a gap junction (arrow) between two trophoblast cells of a hatched, expanded stage 3 embryo in vitro (original magnification x3,500). Notice interlocking microvilli (Mv).
(From: Sathananthan, Menzes, and Gunasheela, 2003. Printed from Reproductive Biomedicine Online.)
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