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Reproductive Medicine and Fertility Center Colorado Springs

Fertility Glossary

Glossary of Fertility Terms

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z
Zona Pellucidasearch for term
A translucent non-cellular layer, which surrounds the egg and embryo. Just prior to implantation the zona will be broken and the embryo released to implant in the endometrium. In some women, especially in women over the age of 37, the zona is thicker and therefore harder for the embryo to hatch. Embryologists can thin the zona pellucida just prior to embryo transfer in IVF cycles See also: Assisted Hatching
Zygotesearch for term
The cell resulting after fertilization of the oocyte by the sperm. e.g. A fertilized egg which has not yet divided.
Zygote Intrafallopian Transfersearch for term
An Assisted Reproductive Technology (ART) in which eggs are removed from a woman's ovaries, fertilized with the man's sperm in a lab dish, and the resulting Zygotes are transferred into the woman's fallopian tubes during a minor surgical procedure. Synonyms: ZIFT