Ch 26 Reproductive System, Part I

1. Ch 26 Reproductive System, Part I Rated “Rx” Learning Objectives for Entire Chapter Describe the structures and functions of the male and female reproductive system. Define meiosis. Compare and contrast it to mitosis. Outline events of spermatogenesis and oogenesis. Describe the regulation of ovarian and uterine cycles. Discuss the physiological effects of the sex hormones (especially estrogen, progesterone, & testosterone). Indicate the infectious agents and modes of transmission of gonorrhea, syphilis, chlamydia, trichomoniasis, genital warts, and herpes (and AIDS time permitting). Read pgs 932 – 937 and 947 – 954 of Ch 26 before you come to class again

2. Spotlight: Testicular Cancer Lance’s Story: http://www.livestrong.org/site/c.jvKZLbMRIsG/b.736583/k.C7AA/Lance.htm If interested in more information, you can read: http://www.amazon.com/Its-Not-About-Bike-Journey/dp/0425179613 Testicular cancer is rare (affecting 1 in every 50,000 males) but it is the most common cancer in young men (ages 15 – 35).

3. Reproductive System Overview • Main function of the reproduction system is to _____ _________. Sperm are the male ____________ (sex cell) Eggs or ____ are the female gamete (sex cell) Relative size of an egg to sperm The union of the egg with a sperm begins human life. http://video.google.com/videoplay?docid=-5190524353764122847&q=sperm+fertilizes+egg&total=103&start=0&num=10&so=0&type=search&plindex=5

4. Male Internal Reproductive Anatomy 101, pg 932 Label the structures on your practice diagram.

5. Male Anatomy 101 continued, pg 934 Continue labeling

6. Sperm Production Sperm are produced within the __________ of the testes From the testes, sperm is carried to the ________, ______________, __________, and finally out the _______.

7. Female Internal Reproductive Anatomy 101, pg 948 Lateral View - Continue labeling

8. Female Anatomy 101 continued, pg 952 Anterior View - Continue labeling

9. Practice Activity: Male & Female Reproductive Structures and Their Functions * See class handout

10. Ovarian Cycle, pg 958 - 959 • The monthly series of events associated with the maturation of an egg is call the _____ ______. • Repeats every 28 days with _______ occuring mid-cycle 1 .Triggered by LH hormone. • 2 consecutive phases 1. ________ phase – time of follicle growth (1 – 14th day of menstrual cycle) 2. _______ phase – time of corpus luteum activity (days 14 – 28 of menstrual cycle) 1 = ovulation is the release of an egg

11. Female Anatomy 101 (Ovaries) continued, pg 949 Continue labeling NOTE: 1 – 6 shows progession of follicle development with egg; 7 is ovulation And, steps 1-7 represent the follicular phase Steps 8-9 represent the luteal phase Corpeus luteum

12. Uterine (Menstrual) Cycle Series of cyclic changes that the uterine ___________goes through each month as it corresponds to the ovarian hormones in the blood

13. Uterine (Menstrual) Cycle and Hormones continued • Days 1 – 5 = ________ (shedding of all but the deepest part of the endometrium). Ovarian hormones at ___ point. By day 5, the growing ovarian follicles are beginning to produce estrogen. • Days 6 – 14 – uterine ling ________ itself. Estrogen levels ______. Ovulation takes place on day 14 due to sudden release of LH from anterior pituitary gland. • Days 15 – 28 – postovulation phase; endometrium prepares for implantation of an ________. Levels of ____________ rise.

14. Summary & Review Questions Instructions: Answer the following in your notes now. • Explain (summarize) the nine steps of follicle development in the ovary within a monthly ovarian cycle. • Outline the flow of sperm from the testes out of the body.