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Medical Term:

membrana vitellina


  1. the membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked oocytes;
  2. sometimes used to designate the zona pellucida of a mammalian oocyte.

Synonym(s): ovular membrane, vitelline membrane

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.