Skip Navigation

Flattened saccules associated with mitochondria in a 4-cell embryo

High power TEM of a section of a blastomere of a stage 2, 4-cell embryo in vivo (original magnification x30,000). Small, flattened saccules (arrows) are closely related to dense mitochondria.

N = nucleus

From: Pereda and Croxatto, 1992. Reproduced with permission of the Annals, Academy of Medicine, Singapore.


Keywords: four-cell embryo, mitochondria, nucleus, saccule(s)


Source: The Virtual Human Embryo.