User:Z3254753

From Embryology

Attendance

--Mark Woods 23:38, 28 July 2010 (UTC)


--z3254753 00:51, 5 August 2010 (UTC)


Cell Division


external link SMH

fertilisation from homepage

picture

Early zygote.jpg

Lab 2 Questions

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

Progesterone- maintains integrity of uterine lining. hCG (human chorionic gonadotrophin) - prevents degeneration of corpus luteum. HPL (human placental lactogen) - consists of 190 amino acids. It modifies metabolic state of mother during the pregnancy to facilitate energy supply to the fetus

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

Estrogen and progestogen, which are steroid hormones.

--Mark Woods 12:12, 11 August 2010 (UTC)