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==Lab 3 Questions==
==Lab 3 Questions==
What Carnegie stages occur during week 3 and week 4?  
1.What Carnegie stages occur during week 3 and week 4?  


What is the change in overall embryo size form the beginning of week 3 to the end of week 4?
During week 1 Carnegie stages 7,8,9 occur and during week 4 carnegie stages 10,11,12,13 occur.


Approximately when do the cranial (anterior) and caudal (posterior) neuropores close in the human embryo?
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.
 
--[[User:Z3254433|z3254433]] 11:14, 22 August 2010 (UTC)

Revision as of 21:14, 22 August 2010

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)

internal link Cell division lecture


external link smh


fertilization link

new sub heading


picture

Early zygote.jpg

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)