Z3223194: Difference between revisions
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A: Stage 13 | A: Stage 13 | ||
--[[User:Z3223194|Bronwyn Lewis-Jones]] 14:03, 13 August 2009 (EST) | --[[User:Z3223194|Bronwyn Lewis-Jones]] 14:03, 13 August 2009 (EST) | ||
== 20/8/09 Lab 4 Questions == |
Revision as of 14:07, 20 August 2009
30/7/09 Lab 1 Questions
1. What is the zona pellucida protein that binds spermatozoa to the oocyte surface?
A: Zona pellucida protein ZP3
2. Name the 3 main stages of follicle development in the ovary.
A: (i) Primordial follicle (ii) Preantral follicle (iii) Antral (or Graafian) follicle
6/8/09 Lab 2 Questions
1. What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy?
A: hCG (Human Chorionic Gonadotropin Hormone)
2. What does the corpus luteum secrete to prevent continuation of the menstrual cycle?
A: Progesterone, Oestrogen.
3. What are the 2 main tissues to be derived from the germ cell layer continuous with the lining of the amniotic sac?
A: The germ cell layer continuous with the lining of the amniotic sac is ectoderm. It's two main derivatives are: (i) Nervous Tissue (ii) Epithelial Layer of Skin
--Bronwyn Lewis-Jones 14:18, 6 August 2009 (EST)
13/8/09 Lab 3 Questions
1. What period of human development (in weeks) do the 23 Carnegie stages cover?
A: The first 8 weeks
2. What part of the somite will contribute to the vertebral column?
A: The Sclerotome forms the vertebral bodies and intervertebral disks.
3. At what Carnegie stage does the human neural tube normally completely close?
A: Stage 13
--Bronwyn Lewis-Jones 14:03, 13 August 2009 (EST)