End Show 39-3 The Reproductive System Slide 1 of 41 Warm-Up #18 Answer question #1 on study guide page 52 under Chp 39-3 Reproductive System HW. Copyright Pearson Prentice Hall

End Show Slide 2 of 41 Copyright Pearson Prentice Hall 39-3 The Reproductive System

End Show Slide 3 of 41 Objectives 1.Describe sexual development 2.Explain the functions of the male and female reproductive systems. 3.Identify the four phases of the menstrual cycle. Copyright Pearson Prentice Hall

End Show Slide 4 of 41 Asexual Reproduction One parent Mitosis / Binary Fission / Budding Diploid cells produced “identical offspring” Stable environment Sessile organisms often Less energy Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 5 of 41 Copyright Pearson Prentice Hall Asexual Reproduction: Runners in strawberries

End Show 39-3 The Reproductive System Slide 6 of 41 Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 7 of 41 Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 8 of 41 Copyright Pearson Prentice Hall Asexual examples: Hydra Budding of polyps Regeneration of cut pieces Video

End Show 39-3 The Reproductive System Slide 9 of 41 Sexual Reproduction Two parents Meiosis Haploid cells (egg & sperm) Haploid + haploid = diploid (fertilization) Genetically different offspring Changing environments Large Energy input Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 10 of 41 Copyright Pearson Prentice Hall Sexual Reproduction

End Show 39-3 The Reproductive System Slide 11 of 41 Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 12 of 41 Copyright Pearson Prentice Hall Flowering Plants Sexual Reproduction

End Show 39-3 The Reproductive System Slide 13 of 41 Gamete Comparison Copyright Pearson Prentice Hall Egg 1 develops/month Set # at birth of potential eggs ~300 – 400 reach maturity No “food” reserves Survive ~24hours after release Sperm 70mil-150mil develop/day Continual Production throughout life food reserves = seminal fluid Survive up to ~5 days after release 40mil-600mil/ejaculation Only one fertilizes... Why??

End Show 39-3 The Reproductive System Slide 14 of 41 Copyright Pearson Prentice Hall The Male Reproductive System A sperm cell consists of: a head, which contains the nucleus a midpiece, which contains energy- releasing mitochondria a tail, which propels the cell forward Head Nucleus Midpiece Mitochondria Tail Sperm Facts Video

End Show 39-3 The Reproductive System Slide 15 of 41 Copyright Pearson Prentice Hall Sperm Production (Spermatogenesis) Process

End Show 39-3 The Reproductive System Slide 16 of 41 Copyright Pearson Prentice Hall Reproduction Hormones HormoneProduced byFunction TestosteroneTesticlesMale sex traits FSHPituitaryStimulates egg/sperm dvlp Stimulate estrogen LHPituitaryStim. Testosterone Release of egg, corpus luteum, progesterone EstrogenOvariesFemale sex traits ProgesteroneCorpus luteumMaintains Uterus lining

End Show 39-3 The Reproductive System Slide 17 of 41 Copyright Pearson Prentice Hall Sperm Production Regulation

End Show 39-3 The Reproductive System Slide 18 of 41 Copyright Pearson Prentice Hall The Menstrual Cycle The Female Reproductive Cycle Aka the menstrual cycle is controlled by internal feedback mechanisms between the reproductive system and the endocrine system. The cycle takes an average of 28 days.

End Show 39-3 The Reproductive System Slide 19 of 41 Copyright Pearson Prentice Hall The Menstrual Cycle Ovulation

End Show 39-3 The Reproductive System Slide 20 of 41 Copyright Pearson Prentice Hall Animation?

End Show 39-3 The Reproductive System Slide 21 of 41 Copyright Pearson Prentice Hall Vas deferens Pubic bone Urethra Penis Seminal vesicle Rectum Prostate gland Bulbourethral gland (Cowpers) Scrotum Testis Epididymis The Male Reproductive System Male Reproductive System Urinary bladder Sperm path?

End Show 39-3 The Reproductive System Slide 22 of 41 Copyright Pearson Prentice Hall The Female Reproductive System Fallopian tube/Oviduct Ovary Uterus Urinary bladder Pubic bone Urethra Vagina Rectum Cervix Female Reproductive System Egg Path?

End Show 39-3 The Reproductive System Slide 23 of 41 SUMMARY What is the function of the male reproductive system? What structures does the sperm pass through on its way to the egg? What is the function of the female reproductive system? What structures does the egg pass through from ovulation to menstruation? What are the four phases of the menstrual cycle? Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 24 of 41 Copyright Pearson Prentice Hall The Egg and Sperm’s Journey (NOVA)

End Show 39-3 The Reproductive System Slide 25 of 41 Complete Study Guide page 54. Copyright Pearson Prentice Hall

End Show 39-3 The Reproductive System Slide 26 of 41 HOMEWORK—DUE MONDAY 1.Read Text Complete Study Guide Copyright Pearson Prentice Hall