1. Qazvin University of Medical Sciences b F. Rajaei Normal Pregnancy Prof. in Biology of Reproduction

2. PGC From primordial germ cells to oocyte and Spermatozoa Undif. Gonad Yolk Sac Testis Ovary PGC Spermatogonia Spermatogonia Spermatid Spermatid Sperm Primordial F. Primary F. Secondary F. Graafian F. MII SRY TDF Epiblast Puberty 7th m of fetal development

3. Oogenesis

6. Spermatogenesis

11. FSH leydig Cell Sertoli Cell ABP Testosteron Epididymis -Morphologic -Biochemical -Sialic AcidA -Glysrophosphocholine -Carnitine -Polylactosamine Role Of Epididymis -Motility -Capacutation

12. Fertilization

16. Embryo Implantation A- Apposition phase - Growth factor - Cytokines - Chemokines - Prostaglandines B- Adhesion phase - Steroids - Epithelial changes of endometer - Attachment Molecules -Integrins - Cadherins - L-Selectin - Immunoglobulins C- Invasion phase