Fertilization normally occurs in the ampulla of the uterine tube

Usually, only a few hundred of the millions of spermatozoa in an ejaculate reach the site of fertilization, typically the ampulla of the uterine tube. On arrival, the spermatozoon penetrates the corona radiata, where the final steps of capacitation occur. Capacitation involves the release of the epididymal fluid glycoconjugate from the surface of the head of the spermatozoon. These surface glycosides added

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