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From Embryology
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--Jenny Huang 23:38, 28 July 2010 (UTC)
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--Jenny Huang 23:36, 4 August 2010 (UTC)
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--z3224500 23:13, 11 August 2010 (UTC)
Attendance
--Jenny Huang 23:18, 18 August 2010 (UTC)
Lab 2 Questions
1. What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy?
hCG - human chorionic gonadotropin
2. What does the corpus luteum secrete to prevent continuation of the menstrual cycle?
It produces Estrogen and Progesterone
Lab 3 Questions
1. What Carnegie stages occur during week 3 and week 4?
Carnegie stages 7-9 occur during week 3 spanning days 15-21 and carnegie stages 10-13 occur spanning days 22-30.
2. What is the change in overall embryo size form the beginning of week 3 to the end of week 4?
From the beginning of week 3 the embryo is about 0.4mm and by the end of week 4 3-5mm.
3. Approximately when do the cranial (anterior) and caudal (posterior) neuropores close in the human embryo?
The anterior neuropore closes during carnegie stage 11 and the posterior neuropore closes at carnegie stage 13.
