Figure 3From: The extracellular matrix of porcine mature oocytes: Origin, composition and presumptive rolesTEM of serial sections of oocytes cultured from 0 hr post hCG until MI in presence of 3H-glucosamine, with (a, b) or without (c, d) cumulus cells. bar = 2 μm a, b : heavy labeling of corona cells (C) and their projections (P) in the ZP, of the PVS (*) and of the ooplasm.c, d : light ooplasm and PVS (*) labeling.Back to article page