Fig. 47. High power TEM of a hatching stage 3 embryo in vitro showing plump, zona-breaker cells near the hatching point (original magnification x6,800). Notice mitochondria (M), tonofilaments (To) and surface microvilli (Mv).
BC, blastocystic cavity; ZP, zona pellucida.
(From: Sathananthan, Menzes, and Gunasheela, 2003. Printed from Reproductive Biomedicine Online.)
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