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Reproduction and Development of the Human Reproductive Systems

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Presentation on theme: "Reproduction and Development of the Human Reproductive Systems"— Presentation transcript:

1 Reproduction and Development of the Human Reproductive Systems
Chapter 15: The Male and Female Reproductive Systems Lesson 15.1 Reproduction and Development of the Human Reproductive Systems

2 Fetal development SRY gene is present No SRY gene
7th week of development male sex organs begin to development No SRY gene 8th week of development female sex organs begin development

3 Male Reproductive System Anatomy and Physiology
Chapter 15: The Male and Female Reproductive Systems Lesson 15.2 Male Reproductive System Anatomy and Physiology

4 Male Reproductive Anatomy

5 Male Reproductive Anatomy
scrotum and testes sperm production mature in epididymis penis delivers sperm contains erectile tissue

6 Male Reproductive Anatomy
ducts ductus deferens ejaculatory duct accessory glands and semen seminal glands prostate gland bulbourethral glands

7 Male Reproductive Physiology
sperm formation spermatogenesis begins at puberty, sexual response Erection-erectile tissue filled with blood Ejaculation- propulsion of semen

8 Sperm Cell

9 Female Reproductive System Anatomy and Physiology
Chapter 15: The Male and Female Reproductive Systems Lesson 15.3 Female Reproductive System Anatomy and Physiology

10 Female Reproductive System Anatomy

11 Female Reproductive System Anatomy
ovaries oocyte egg cell ovulation release of egg from ovary

12 Female Reproductive System Anatomy
ducts uterine tubes connect ovary to uterus uterus–womb endometrium cervix

13 Female Reproductive System Anatomy
vagina birth canal external genitalia labia clitoris mammary glands lactation

14 Oogenesis oocyte production process begins before birth primary oocyte
secondary oocyte polar bodies

15 The Female Sexual Cycle
menstrual cycle ovarian cycle maturation and release of oocyte Days 1-14 uterine cycle uterus readies for implantation

16 The Ovarian Cycle Follicular phase primary follicle Luteal phase
pituitary gland releases FSH and LH ovulation Luteal phase Secretes LH Corpus Luteum disintegrates after 10 days (if no fertilization)

17 The Uterine Cycle menstrual phase proliferative phase secretory phase
days 1-5; endometrium breaks down and sheds proliferative phase days leading to ovulation; endometrium grows back secretory phase Ovulationendometrium prepares to nourish embryo

18 Fertilization, Pregnancy, and Birth
Chapter 15: The Male and Female Reproductive Systems Lesson 15.4 Fertilization, Pregnancy, and Birth

19 Fertilization, Pregnancy, and Birth
fertilization of oocyte pregnancy childbirth lactation

20 Fertilization of the Oocyte
journey of sperm vagina, uterus, uterine tube capacitation can take 10 hours sperm penetration zona pellucida acrosomal enzymes

21 Fertilization of the Oocyte
only 1 sperm is required for fertilization more than 1 = death of oocyte chemistry of zona pellucida changes after sperm entry Sperm entry, completion of meiosis and fertilization Contact with ZP activates Acrosomal enzymes Nejron Photo/Shutterstock.com

22 Pregnancy lasts approximately 265 days
(if by last period, 9 months-1 week or 280 days) from fertilization to implantation development of placenta, embryo, and fetus

23 From Fertilization to Implantation
cell stages Zygote- fertilized egg, less than 16 cells Morula- solid ball,16 cells Blastocyst- sheds zona pellucida, enters uterine cavity, fluid-filled cavity, develops trophoblast implantation Day 15 of uterine cycle; blastocyst binds to endometrium High hCG retains endometrium

24 From Fertilization to Implantation

25 Development of Placenta, Embryo, and Fetus
Implantation-8 weeks Fetus 8+ weeks of development Placenta supplies nutrients to embryo and fetus

26 Childbirth Parturition = birth; prostaglandins from placenta stimulate contractions Contractions last1 min every 2-3 minutes oxytocin stages of labor Dilation- full is 10 cm Expulsion- full dilation  delivery delivery of placenta Detaches from uterine wall

27 Lactation production of breast milk activation of milk-producing cells
prolactin delivery of milk through ducts to nipple oxytocin

28 Disorders and Diseases of the Reproductive System
Chapter 15: The Male and Female Reproductive Systems Lesson 15.5 Disorders and Diseases of the Reproductive System

29 Infertility male infertility female infertility low sperm count
erectile dysfunction female infertility failure to ovulate inability of egg to reach uterine tube lack of implantation

30 Infertility treatment for infertility in vitro fertilization
lifestyle changes drugs to induce ovulation surgery to correct anatomical issues in vitro fertilization oocyte and sperm combined outside mother’s body

31 Cancers of the Reproductive System
prostate cancer PSA test cancers of the female reproductive tract uterine cancer ovarian cancer cervical cancer breast cancer


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