Hormonal Control of the Menstrual Cycle Worksheet

1. What is a hormone? A chemical which is produced in one part of the body and has an affect on another.
2. What system is responsible for the production of hormones? Reproductive system
3. Sketch a picture of the female reproductive system. Include the oviduct, ovaries, uterus, cervix and vagina.
4. Where does the embryo undergo most of its development? The uterus
5. What is another name for the fallopian tube? Oviduct
6. Where does fertilization take place? In the fallopian tubes
7. What is ovulation? A process in which an egg is released from the ovary
8. What is the follicle converted to? A corpus luteum
9. What happens during the flow phase? Hormone production by the ovaries ceases and the uterine lining sloughs off.
10. What happens during the follicular phase? The developing follicle enlarges and produces a hormone which causes the uterine lining to thicken.
11. What happens during the luteal phase? A hormone from the pituitary converts the follicle to a corpus luteum. The corpus luteum produces a hormone which causes the uterine lining to develop further.
12. What happens to the uterine lining during the first phase? It sheds
13. What are the four hormones that control the menstrual cycle? FSH, LH, Estrogen, and Progesterone
14. As FSH increases in concentration in the blood , the follicle is? Developing
15. When the follicle ruptures it releases what? Egg
16. What is considered the hormone of pregnancy? Progesterone
17. What is the rhythm method? There is a period of 3-4 days when pregnancy can occur, after ovulation the egg remains fertile for about 24 hrs. and sperm can remain fertile for about 48 hours or more.
18. What do you call a couple using the rhythm method? Parents
19. What is menopause? What causes it? The halting of the menstrual cycle which occurs at around the age of 45-50 in most women. The cause is the cessation of LH secretion by the pituitary.
20. When does fertilization occur? After ovulation
21. When is a zygote formed? When fertilization occurs
22. What is a placenta? The organ which is made of embryo and uterine tissues that aids in exchange of matrerials