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  Indian J Med Microbiol
 

Figure 3: Electron micrograph of a rabbit sperm head in the act of penetrating the zona pellucida (ZP). In this example, the sperm head has buckled at the point marked by arrow heads.

Figure 3: Electron micrograph of a rabbit sperm head in the act of penetrating the zona pellucida (ZP). In this example, the sperm head has buckled at the point marked by arrow heads.