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Tony Serino, Ph.D. Biology Department Misericordia University

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1 Tony Serino, Ph.D. Biology Department Misericordia University
Reproduction: Female Tony Serino, Ph.D. Biology Department Misericordia University

2 Female Reproduction Gonad: Ovary Gametes: Ova Duct System:
Transport ovum from ovary to uterus Site of fertilization; Receive and transport sperm to ovum Capacitate sperm House and support fetus Deliver fetus Supporting Structures Sensory and protective functions

3 Female External Genitalia

4 Female Anatomy (oviduct or Fallopian tube) Vulva

5 Development of Ovum and Follicle

6 Oviduct (Uterine or Fallopian tube)
Ampulla Isthmus

7 Uterine Layers Perimetrium

8 Female Hormones Hypothalamus secretes GnRH
Anterior Pituitary secretes FSH and LH Theca cells of ovary secrete estrogens Granulosa cells secrete inhibin Luteal cells (modified granulosa cells) secrete progesterone

9 Fig 17.19.jpg Converted by aromatase

10 Fig 17.06.jpg

11 Ovarian and Uterine Cycles

12 Female Sexual Response
Arousal Triggered by: Touching of genital skin and other areas of skin Mechanical stimulation of pressure receptors in clitoris Erotic sights, sounds, and smells Thoughts and memories Increased myotonia throughout body, BP, breathing and HR Sexual stimulation leads to accumulation of blood in vaginal tissues, labia minora, clitoris, and breasts (including areola and nipple) Vestibular glands secrete lubricating fluid into vestibule and mucous is secreted into vagina The vagina may expand its width and some of its length Plateau Increased swelling of vagina and labia minora, and become more sensitive Clitoris may withdraw into its hood (prepuce) Orgasm Pleasurable rhythmic contractions of uterus, vagina and clitoris Followed by relaxation but no refractory period

13 Development of Reproductive System
Gonads of embryo are sexually indistinguishable Two sets of ducts present: Mullerian (female) and Wolfian (male) Female pattern will develop as default If XY, then testes develop and secrete testosterone Testosterone stimulates growth of male pattern and degeneration of female pattern

14 Male Development 17.03a.jpg

15 Female Development 17.03b.jpg

16 Reproductive Development
Much of the system’s development occurs after birth –during adolescence Generation of functional sex cells and secondary characteristics dependent on fully functional gonads in both sexes

17 Pregnancy

18 Fig 17.23.jpg

19 Pregnant Uterus 17.27a.jpg

20 Fig 17.28.jpg

21 17.29a.jpg

22 Labor: Dilation and Effacement
17.29b.jpg

23 Birth: Fetus Expulsion
17.29c.jpg

24 Fig d 17.29d.jpg

25 After birth 17.29e.jpg

26 Positive Feedback for Birth
17.30.jpg

27 Lactation 17.31.jpg

28 Fig 17.32.jpg

29 17.11.jpg

30 Contraception Methods

31 Menopause Cessation of reproductive function with age
Occurs only in women (men slow down function but do not cease unless pathology occurs) Women see steep decline in pituitary and ovarian hormone production that eventually stops both ovarian and uterine cycles Woman said to complete menopause after one year without menses


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