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Fig. 36. Primary Chorionic Villi

Diagrammatic. (Modified from Bryce.)

Week 2 - first stage of chorionic villi development.

Trophoblastic shell cells (syncitiotrophoblasts and cytotrophoblasts) form finger-like extensions into maternal decidua.

Villi Image Links: tertiary villi | secondary villi | tertiary villi | Villi Development

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Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.

Cite this page: Hill, M.A. (2024, April 23) Embryology Gray0036.jpg. Retrieved from

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current12:56, 13 August 2012Thumbnail for version as of 12:56, 13 August 2012500 × 356 (52 KB)Z8600021 (talk | contribs)==Primary Chorionic Villi== Diagrammatic. (Modified from Bryce.) {{Gray Anatomy}} Category:Cartoon Category:Placenta