| zona pellucida |
The tough outer covering of an egg which functions somewhat like a shell. Sperm must penetrate this "shell" in order to fertilize the egg.
출처: www.havingbabies.com/news/42_146_2982.cfm
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|---|---|
| zona pellucida |
the outer membrane of a human egg.
출처: www.sbivf.com/glossary.htm
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| zona pellucida |
The outer covering of the ovum that the sperm must penetrate before fertilization can occur.
출처: www.ivf.org/glossary.html
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| zona pellucida |
A thick, transparent, noncellular layer or envelope of uniform thickness surrounding an oocyte. Also called the oolemma.
출처: nmhm.washingtondc.museum/collections/hdac/Glossary...
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| zona pellucida |
The protective coating around the egg and early embryo.
출처: www.clearplan.com/GlossaryofConceptionTerms.cfm
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