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单词 vitelline membrane
释义

vitelline membrane

noun Embryology
A transparent membrane surrounding and secreted by the fertilized ovum, preventing the entry of further spermatozoa.Each embryo is surrounded, from exterior to interior, by the chorion, the vitelline membrane and the embryonic membrane....
  • The cortical granule contents contribute to the vitelline membrane to form the fertilization membrane, and also provide a hyaline layer between it and the egg's plasma membrane.
  • Transcript destabilization fails in mutants with a defective vitelline membrane.
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更新时间:2024/12/23 16:33:54