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group 2

Chorionic Villus Sampling

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--z3265772 23:43, 28 July 2010 (UTC)

--z3265772 22:57, 4 August 2010 (UTC)

Lab 2 Questions

1. What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy?

Syncytiotrophoblasts secrete Human Chorionic Gonadotropin (hCG) hormone, which prevents degeneration of the corpus luteum

1. What does the corpus luteum secrete to prevent continuation of the menstrual cycle?

Progesterone, which helps make the endometrial lining ready for implantation if an egg is fertilized. Progesterone also changes the endometrium to a secretory lining (from proliferative), which creates an ideal environment for the blastocyst.

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