Reproductive System Vocabulary

1. Corpus luteum - what an ovarian follicle develops into during the luteal phase of the menstrual cycle.


2. Epididymis - The tube located along the testes where sperm mature.

3. Gonad - in males, the testes. In females, the ovaries.


4. Meiosis - when a destined-to-be sex cell with 46 chromosomes going through a process that results in four sex cells with 23 chromosomes each.


5. Oocyte - a developing female sex cell.


6. Ovary - the female gonads.


7. Placenta - Where fetal blood exchanges materials with maternal blood.


8. Scrotum - the skin sac that holds the testes.


9. Seminiferous tubule - the tubes inside the testes that create sperm.


10. Testis - the male gonads.


11. Vulva - The external vagina.


12. Blastocyst - The stage of a baby's development between being a zygote and an embryo.


13. Embryo - A developing baby. (Weeks 2-8 is the embryonic stage.)


14. Fetus - A developing baby. (Months 3-9 is the fetal stage.)


15. Implantation - When the egg is fertilized, it becomes a zygote and is implanted in the endometrium.


16. Lactation - When a new mother's breasts produce milk for her baby.


17. Umbilical cord - The cord that transports blood to and from the placenta.


18. Yolk sac - The first site of red blood cells in the uterus.


19. Zygote - A fertilized egg.


20. Ultrasound - The process used to see into a pregnant woman's womb. Non-invasive.