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Book

Embryology, Fertilization

Rebecca Oliver, Hajira Basit  1
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Free Books & Documents
Book

Embryology, Fertilization

Rebecca Oliver et al.
Free Books & Documents

Excerpt

Fertilization is a complex multi-step process that is complete in 24 hours. The sperm from a male meets an ovum from a female and forms a zygote; this is the point in which pregnancy begins and leads to a 280-day journey for a female. There are two ways to track this process, and they differ by the day counting begins. There are the post-ovulation age and the gestational age, calculated by adding two weeks to the last menstrual period. There are many steps that both the egg and sperm must go through for this process to be successful. Furthermore, the fertilized egg itself goes through drastic changes. This article will detail the process in the following sections.

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Conflict of interest statement

Disclosure: Rebecca Oliver declares no relevant financial relationships with ineligible companies.

Disclosure: Hajira Basit declares no relevant financial relationships with ineligible companies.

References

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