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Female Reproduction

Female Reproduction. Ch. 28-2. Organs of the Female. Ovaries – produce egg and hormones Uterine (fallopian) tubes or oviducts – transport egg to uterus, site of fetilization Uterus – site of implantation of fertilized egg, development of fetus, labor

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Female Reproduction

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  1. Female Reproduction Ch. 28-2

  2. Organs of the Female • Ovaries – produce egg and hormones • Uterine (fallopian) tubes or oviducts – transport egg to uterus, site of fetilization • Uterus – site of implantation of fertilized egg, development of fetus, labor • Vagina – receives penis, passageway for childbirth • External organs (vulva) • Mammary glands – synthesize, secrete, and eject milk for newborn

  3. Organs

  4. WORD BANK Cervix Fallopian Tubes Vagina Ovary Uterus

  5. Organs • Ovaries • Paired glands, almond sized • Produce • Gametes (egg cells) • Hormones (progesterone and estrogen, inhibin, relaxin) • Uterine tubes (fallopian) or oviduct • Extend away from uterus • Provide route for sperm to reach ovum • Transports eggs and fertilized eggs to the uterus from the ovary • Have cilia at the ends to “coax” egg from ovary • Fertilization occurs here • Up to _____hours after ovulation – sperm can survive for days • Egg enters uterus 6-7 days after ovulation

  6. Organs • Uterus (womb) • pear-shaped • Pathway for sperm deposition into vagina to reach fallopian tubes • Site of implantation for fertilized egg • Growth of fetus during pregnancy • Labor • Source of menstrual flow

  7. Organs • Uterus • Fundus • Body • Cervix

  8. Organs • Cervical mucus • Water, glycoproteins, lipids, enzymes, salts • More hospitable to sperm during ovulation • Helps protect sperm on passage to uterus • Vagina • Fibromuscular canal • Receptacle for penis • Outlet for menstrual flow • Passageway for childbirth

  9. Organs • Vulva - External genitals of female • Mons pubis – adipose tissue, skin, hair • Labia majora – two folds, covered by pubic hair • Labia minora – two folds, underneath labia majora, no hair • Clitoris, glans – erectile tissue and nerves, sexual excitement in females

  10. Female External

  11. Organs • Mammary glands • Breast • Nipple – where milk emerges • Areola – darkened area around nipple • Mammary gland – modified sweat glands

  12. Disease/Medical • Ovarian cysts • Fluid-filled sac in or on ovary • Usually noncancerous, can go away on their own • Uterine prolapse • When uterus is outside the vagina • Occurs with age, disease, traumatic vaginal delivery, difficult bowel movements, coughing • Can be put back with surgery

  13. Disease/Medical • Hysterectomy • Removal of uterus • Episiotomy • Fetus stretches perenial region • Performed to prevent tearing • Straight, tearing is jagged

  14. Oogenesis

  15. Male/Female Homologous Structures

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