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. [ Wikipedia:Zona_pellucida ]
术语信息
- EMAPA:16035
- BTO:0003135
- MA:0001715
- GAID:410
- EHDAA:62
- UMLS:C0043519 (ncithesaurus:Zona_Pellucida)
- ZFA:0001111
- Wikipedia:Zona_pellucida
- MESH:D015044
- FMA:18674
- VHOG:0000720
- EHDAA2:0002220
- EHDAA:31
- TAO:0001111
- NCIT:C33896
pheno_slim, vertebrate_core
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]
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.
zona radiata
vitelline envelope
vitelline membrane
pellucid zone
zona striata
oolemma
striated membrane
术语关系
- acellular anatomical structure
- anatomical entity
- part of some ovary
- bounding layer of some oocyte
- has part some glycoprotein
- part of some oocyte