Examlex
Unlike amniocentesis, chorionic villus sampling (CVS) takes place during the first trimester of pregnancy.
Primary Spermatocyte
A male germ cell that undergoes meiosis to form spermatozoa, in the process of spermatogenesis.
Sertoli Cell
A type of somatic cell found within the seminiferous tubules of the testis that supports and nourishes developing sperm cells.
Zona Pellucida
The zona pellucida is a glycoprotein layer surrounding the plasma membrane of an oocyte or early-stage embryo, playing a crucial role in fertilization and preventing polyspermy.
Effaced
In medical terms, often relates to the thinning and stretching of the cervix in preparation for childbirth; in a general context, it can mean erased or made less clear.
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