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Expanded embryo showing details of mitochondria within a trophoblast cell

Very high power TEM of an expanded stage 3 embryo in vitro showing details of mitochondria within a trophoblast cell (original magnification x35,000). Some mitochondria are smaller and are beginning to elongate as their inner membranes form transverse cristae; others are larger and spherical and retain peripheral arch-like cristae.

R = rough endoplasmic reticulum

From: Sathananthan and Trounson, 2000


Keywords: arch-like cristae, expanded embryo, mitochondria within trophoblast cell, rough endoplasmic reticulum, transverse cristae


Source: The Virtual Human Embryo.