Fig. 48. TEM of a hatching stage 3 embryo in vitro showing plump zona-breaker cells in the trophoblast close to the hatching point (original magnification x5,100).
BC, blastocystic cavity; Mv, surface microvilli; ZP, zona pellucida.
(From: Sathananthan, Menzes, and Gunasheela, 2003. Printed from Reproductive Biomedicine Online.)
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