Figure 5From: Preservation of mouse ovarian tissue follicle morphology and ultra-structure after vitrifying in biotechnological protocols Transmission electron microscopy images of the secondary follicle from single cryoprotectants. The zona pellucid ZP was fully developed and forming a thick layer around the oocyte O, the oocyte had swollen mitochondria m and their crista had disappeared. Many wider spaces S observed between oocyte and granulosa cells GC. A) TEM: Ć1670, B) TEM: Ć2784.Back to article page