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The Reproductive System

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Presentation on theme: "The Reproductive System"— Presentation transcript:

1 The Reproductive System
Chapter 27

2 Male Reproductive System

3 The Scrotum

4 The Testes and Epididymis

5 The Testes and Epididymis

6 The Ductus Deferens and Glands

7 Urethra and Penis

8 Sperm Three regions Enzyme Hyaluronidase Head with acrosome
Mid-piece or body Tail Enzyme Hyaluronidase

9 Physiology of Male System
Sperm Analysis One of the first tests done to determine male infertility Sterile if less than 20 million sperm per ml Erection Controlled by the parasympathetic nervous system Nitric oxide causes the smooth muscles to relax and the blood vessels to dilate Ejaculation Controlled by the sympathetic nervous system Also called climax or orgasm

10 Gametogenesis Occurs by Meiosis rather than mitosis
Results in four daughter cells rather than two Reduces chromosome number by one-half

11 Process of Meiosis

12 Process of Meiosis

13 Process of Meiosis

14 Hormonal Control

15 Spermatogenesis

16 Female Reproductive System

17 Ovaries

18 Ovaries

19 Uterine tubes and Uterus

20 Uterine tubes and Uterus

21 Endometrium

22 Vagina

23 External Anatomy

24 External Anatomy

25 Mammary Glands

26 Mammary Glands

27 Oogenesis

28 Ovarian Cycle Follicular phase Ovulation Luteal phase

29 The Ovarian Cycle

30 The Ovarian Cycle

31 The Ovarian Cycle

32 The Ovarian Cycle

33 The Ovarian Cycle

34 The Ovarian Cycle

35 The Ovarian Cycle

36 The Ovarian Cycle

37 Hormonal Influence

38 Uterine Cycle Menstrual stage (menses)
Pre-ovulatory stage (proliferative) Post-ovulatory stage (secretory)

39 The Menstrual Cycle

40 Hormonal Influence

41 Hormonal Effects

42 Hormonal Effects

43 Homeostatic Imbalances
Testicular cancer Prostate cancer Prostatitis Cryptochidism Impotence Pelvic inflammatory disease Cervical cancer Uterine prolapse Nondisjunction Sexually transmitted diseases Gonorrhea Syphilis Chlamydia Genital warts Genital herpes Amenorrhea and menopause Dysmenorrhea Endometriosis


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