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From Embryology

Laboratory

--Mary Nicolas 23:38, 28 July 2010 (UTC)


Cell Division lecture

Fertization- First diploid cell

SMH

--Mary Nicolas 23:37, 4 August 2010 (UTC)


1. Syncytiotropoblast cells secrete:

• Progesterone which maintains the integrity of the uterine lining. • Human chorionic gonadotropin (hCG) which prevents the degeneration of the corpus luteum. • Human placental lactogen (HPL) which modifies the metabolic state of the mother during pregnancy to facilitate the energy supply of the fetus

Picture

Early zygote.jpg