Chorion
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The chorion is one of the embryonic membranous structures than enclosesthat enclose both the fetus as well as 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 and forms the chorionic frondosum, which in turn gives rise to the placenta.
History and etymology
The word chorion derives from the Greek wordχόριο meaning skin. Galenwas the first to apply the term to the fetus.
Related pathology
-<p>The <strong>chorion </strong>is one of the embryonic membranous structures than encloses both the fetus as well as the <a href="/articles/amnion">amnion</a>. The chorion begins to form chorionic villi towards its outer surface, which initially serves to provide nutrition to the developing embryo. </p><p>Part of the chorionic villi arborize more extensively and forms the chorionic frondosum, which in turn gives rise to the placenta. </p><h4>History and etymology</h4><p>The word <strong>chorion</strong> derives from the Greek word <em><strong>χόριο</strong></em> meaning skin. <strong>Galen </strong>was the first to apply the term to the fetus.</p><h4>Related pathology</h4><ul>- +<p>The <strong>chorion </strong>is one of the embryonic membranous structures that enclose both the fetus as well as the <a href="/articles/amnion">amnion</a>. The chorion begins to form chorionic villi towards its outer surface, which initially serves to provide nutrition to the developing embryo. </p><p>Part of the chorionic villi arborize more extensively and forms the chorionic frondosum, which in turn gives rise to the placenta. </p><h4>History and etymology</h4><p>The word <strong>chorion</strong> derives from the Greek word <em><strong>χόριο</strong></em> meaning skin. <strong>Galen </strong>was the first to apply the term to the fetus.</p><h4>Related pathology</h4><ul>
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