" /> zona pellucida - CISMeF





Preferred Label : zona pellucida;

Uberon definition : A glycoprotein membrane surrounding the plasma membrane of an oocyte. It is a vital constitutive part of the latter, external but not extraneous to it. The zona pellucida first appears in multilaminar primary oocytes.;

Uberon related term : pellucid zone; zona radiata; zona striata; vitelline envelope; vitelline membrane; striated membrane; oolemma;

Uberon broad term : zona pellucida - vitelline membrane;

Uberon Homology note : Outside the plasma membrane, three envelopes surround the ovum. The first, the primary egg envelope, lies between the plasma membrane and the surrounding cells of the ovary. The most consistent component of this primary layer is the vitelline membrane, a transparent jacket of fibrous protein. In mammals, the homologous structure is called the zona pellucida.[well established][VHOG];

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A glycoprotein membrane surrounding the plasma membrane of an oocyte. It is a vital constitutive part of the latter, external but not extraneous to it. The zona pellucida first appears in multilaminar primary oocytes.

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27/07/2025


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