parietal yolk sac

primary yolk sac

Tissue that consists of two cellular layers (parietal endoderm and trophoblast) separated by a relatively thick nonvascular basement membrane (Reichert's membrane), and acts as a protective layer to supports and facilitates transport of nutrients between the uterine tissue and the yolk sac cavity.

Type Organ
Parent Structure yolk sac
Latin Name primary yolk sac
FMA ID 296713

Frequently Asked Questions

What is the parietal yolk sac?
Tissue that consists of two cellular layers (parietal endoderm and trophoblast) separated by a relatively thick nonvascular basement membrane (Reichert's membrane), and acts as a protective layer to supports and facilitates transport of nutrients between the uterine tissue and the yolk sac cavity.
What is the Latin name for the parietal yolk sac?
The Latin name for the parietal yolk sac is primary yolk sac.

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.