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hatching
The process by which the embryo (blastocyst) on day 5 or 6 of development leaves the outer layer (zona pellucida) and attaches to the lining of the uterus.
Grammatical category Noun
Field Anatomy, physiology and embryology
Level of specialization Medium
Definition source glosario de Fertilidad
Equivalents

Spanish

eclosión

Valenciano

eclosió
Examples
Eventually, the zona pellucida develops a crack through which the blastocyst begins hatching, ultimately leaving the zona pellucida after multiple collapsing movements.
A no-result was obtained in 7.7% of embryos, with no differ- ence between early hatching and late hatching.