chorion
(kōr′ē-on″)
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[Gr. chorion, membrane (surrounding the fetus)]
An extraembryonic membrane that, in early development, forms the outer wall of the blastocyst. It is the thicker, outer layer of the two fetal membranes and is formed from the trophoblast and its lining of mesoderm. From it develop the chorionic villi, which grow into the endometrium and will become the fetal portion of the placenta.
SEE: embryo, SEE: placenta, and SEE: umbilical cord for illus.; SEE: trophoblast
chorionic (kōr″ē-on′ik)
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Citation
Venes, Donald, editor. "Chorion." Taber's Medical Dictionary, 24th ed., F.A. Davis Company, 2021. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/767394/all/chorion.
Chorion. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2021. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/767394/all/chorion. Accessed December 2, 2024.
Chorion. (2021). In Venes, D. (Ed.), Taber's Medical Dictionary (24th ed.). F.A. Davis Company. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/767394/all/chorion
Chorion [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2021. [cited 2024 December 02]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/767394/all/chorion.
* Article titles in AMA citation format should be in sentence-case
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