Figure 1From: Cumulus expansion, nuclear maturation and connexin 43, cyclooxygenase-2 and FSH receptor mRNA expression in equine cumulus-oocyte complexes cultured in vitro in the presence of FSH and precursors for hyaluronic acid synthesisCompact cumulus (A): tightly attached cells surrounding the oocyte with a smooth surface over the cumulus hillock. Expanded cumulus (B): cells detached from the oocyte with matrix visible between cumulus cells.Back to article page