Processes of fertilization Corona radiata cells Phase i Phase1 penetrate the corona radiata, Polar body acrosomal release ● Phase ii Acrosome nner acrosomal -ZP with receptors- zona pellucida nucleus Secondary oocyte in 2nd meiotic spongy- the release of local division enzymes Fusion oocyte and sperm cell membranes ● Phase il Success formation of zygoteProcesses of fertilization: •Phase I –penetrate the corona radiata, acrosomal release •Phase II –ZP with receptors – zona pellucida spongy – the release of local enzymes •Phase III –Success formation of zygote