Z3187802

--Vishnnu Shanmugam 13:09, 6 August 2009 (EST)--Mark Hill 21:58, 5 August 2009 (EST) Where are your answers from Laboratory 1 Assessment? --Vishnnu Shanmugam 13:09, 6 August 2009 (EST)

Lab 1 Questions: 1. What is the zona pellucida protein that binds spermatozoa to the oocyte surface? ZP3 glycoprotein

2. Name the 3 main stages of follicle development in the ovary?

       1)	Primordial follicle
       2)	Preantral follicle 
       3)	Antral follicle 

Lab 2 Questions: 1. What factor do the synctiotrophoblast cells secrete to support the ongoing pregnancy? Human Chorionic Gonadotropin (hCG) hormone

2. What does the corpus luteum secrete to prevent continuation of the menstrual cycle? progesterone

3. What are the 2 main tissues to be derived from the germ cell layer continuous with the lining of the amniotic sac?

       1)	Epithelium of skin covering embryo
       2)	Nervous system from neural crest & neural tube