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Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
Human reproductive system
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Human reproductive system

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  • 1. Human Reproductive System
  • 2. Part Job Testis Produces sperm cells Scrotum Sac that holds the testis Penis Penis Places sperms into the vagina during mating Vas deferens Carries sperm from testes to urethra Urethra Carries sperm out of the body Glands a. seminal vesicle b. prostate gland c. Bulbourethral gland Provide liquid in which sperm can swim Secretes one of the components of the semen Secretes a milky fluid that is discharged into the urethra as part of the semen Mucous secreting glands located at the base of the penis
  • 3. Male Reproductive System
  • 4.  
  • 5. The female reproductive system has the following functions: <ul><li>1. Production of female sex cells </li></ul><ul><li>2. Reception of sperm cells from the male </li></ul><ul><li>3. Nurturing the development of and providing nourishment for, the new individual </li></ul>
  • 6. Part Job Ovary Produces egg cells Oviduct Oviduct Passageway of eggs from the ovary to the uterus (also the same place where the egg is fertilized. Uterus Place where fertilized egg develops Vagina Receives penis of male during mating
  • 7. Female Reproductive System
  • 8.  
  • 9. The Menstrual Cycle
  • 10.  
  • 11. Fertilization <ul><li>Occurs in upper 1/3 of Fallopian tube </li></ul><ul><li>Once one sperm enters, egg membrane changes </li></ul><ul><li>Fertilized egg = zygote </li></ul>
  • 12. Implantation <ul><li>Implanted into thick walls of uterus </li></ul><ul><li>Chorion membranes dig into uterus to form placenta </li></ul><ul><li>Embryo supported via umbilical cord </li></ul><ul><li>Once pregnant, progesterone levels stay high in mom </li></ul>
  • 13. 1 st Trimester <ul><li>Heart develops first </li></ul><ul><li>Neural tube develops </li></ul><ul><li>All body systems appear by Week 8 – Now a Fetus </li></ul>
  • 14. 2 nd Trimester <ul><li>Mostly growth </li></ul><ul><li>Looks more like a baby </li></ul><ul><li>Some preemies survive at this stage </li></ul>
  • 15. 3 rd Trimester <ul><li>More growth </li></ul><ul><li>Kicking, rolling, stretching </li></ul><ul><li>Eyes open – Week 32 </li></ul><ul><li>Lungs mature </li></ul><ul><li>Rotates to head-down </li></ul><ul><li>position </li></ul>
  • 16. Birth <ul><li>Labor </li></ul><ul><ul><li>Uterine contractions begin </li></ul></ul><ul><ul><li>Cervix dilates to 10 cm. </li></ul></ul><ul><li>Birth </li></ul><ul><ul><li>Uterus pushes baby through vaginal canal </li></ul></ul><ul><li>Placenta delivered after </li></ul>
  • 17.  
  • 18. Most of this not fun?

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