Z3223194: Difference between revisions
From Embryology
Line 2: | Line 2: | ||
1. What is the protein that | 1. What is the zona pellucida protein that binds spermatozoa to the oocyte surface? | ||
A: Zona pellucida protein ZP3 | A: Zona pellucida protein ZP3 | ||
2. Name the 3 stages of follicle development in the ovary. | 2. Name the 3 main stages of follicle development in the ovary. | ||
A: (i) Primordial follicle | A: (i) Primordial follicle | ||
(ii) Preantral follicle | (ii) Preantral follicle | ||
(iii) Antral (or Graafian) follicle | (iii) Antral (or Graafian) follicle | ||
== 6/8/09 Lab Class week 3 Questions == | == 6/8/09 Lab Class week 3 Questions == |
Revision as of 23:15, 6 August 2009
30/7/09 Lab Class week 2 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 Class week 3 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)