Chorion
Last revised by Grace Carpenter ◉
on 29 Jan 2022
Citation, DOI, disclosures and article data
Citation:
Radswiki T, Carpenter G, Jones J, et al. Chorion. Reference article, Radiopaedia.org (Accessed on 07 Dec 2024) https://doi.org/10.53347/rID-15177
Permalink:
rID:
15177
Article created:
29 Sep 2011,
The Radswiki ◉
Disclosures:
At the time the article was created The Radswiki had no recorded disclosures.
View The Radswiki's current disclosures
Last revised:
29 Jan 2022,
Grace Carpenter ◉
Disclosures:
At the time the article was last revised Grace Carpenter had no recorded disclosures.
View Grace Carpenter's current disclosures
Revisions:
7 times, by
6 contributors -
see full revision history and disclosures
Systems:
Sections:
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Synonyms:
- Chorionic sac
- Chorionic membrane
The chorion is one of the embryonic membranous structures that encloses the fetus and the amnion. The chorion begins to form chorionic villi towards its outer surface, which initially serves to provide nutrition to the developing embryo.
Part of the chorionic villi arborize more extensively and forms the chorionic frondosum, which in turn gives rise to the placenta.
History and etymology
The word chorion derives from the Greek word χόριο meaning skin. Galen was the first to apply the term to the fetus.
Related pathology
References
- 1. Michael Schünke, Lawrence M. Ross, Erik Schulte et al. Thieme Atlas of Anatomy. (2006) ISBN: 9783131420817
- 2. Wolfgang Dähnert. Radiology Review Manual. (2011) ISBN: 9781609139438
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Cases:
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