User:Z3254433
Laboratory attendance
--z3254433 23:44, 28 July 2010 (UTC)
--z3254433 23:16, 4 August 2010 (UTC)
--z3254433 23:13, 11 August 2010 (UTC)
--z3254433 23:09, 18 August 2010 (UTC)
--z3254433 23:14, 25 August 2010 (UTC)
internal link Cell division lecture
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Lab 2 Questions
What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy? human chorionic gonadotropin (hCG).
What does the corpus luteum secrete to prevent continuation of the menstrual cycle? progesterone
Lab 3 Questions
1.What Carnegie stages occur during week 3 and week 4?
During week 1 Carnegie stages 7,8,9 occur and during week 4 carnegie stages 10,11,12,13 occur.
2.What is the change in overall embryo size from the beginning of week 3 to the end of week 4?
From the beginning of week 3 to the end of week 4 the embryo grows from 0.4mm to 3-5mm.
3.Approximately when do the cranial (anterior) and caudal (posterior) neuropores close in the human embryo?
The cranial neuropores close on day 24 and the caudal neuropore closes on day 26.
--z3254433 11:14, 22 August 2010 (UTC)