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. [ http://en.wikipedia.org/wiki/Zona_pellucida ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

pheno_slim, vertebrate_core, human_reference_atlas

has broad synonym

zona pellucida - vitelline membrane

has related synonym

zona radiata

vitelline envelope

vitelline membrane

pellucid zone

zona striata

oolemma

striated membrane

id

UBERON:0000086

Term relations