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Reproductive System Chapter 10


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Reproductive System Chapter 10

  1. 1. Reproductive System Alvedina Besirevic
  2. 2. 3 Stages of Labor and Delivery• Dilation stage• Expulsion stage• Placental stage
  3. 3. Dilation stage• Uterine muscles contract fetus presses on the cervix• Cervix dilates until 10cm in diameter• Can last anywhere from several hours to days• Dilation stage is broken down into three phases: Early phase, active phase and transition phase
  4. 4. 3 Phases of Dilation Stage
  5. 5. Expulsion Stage• part of labor from full dilation (10cm) unil baby is out of birth canal• ends with delivery of the baby
  6. 6. Expulsion Stage
  7. 7. Placental Stage• After delivery of the baby uterus naturally contracts• Placenta detaches from uterus and its expelled through vagina
  8. 8. Placental stage
  9. 9. Gestation• A time required for development of fetus• Also called pregnancy• Gestation is calculated from first day of the last menstrual period with a range of 259-280 days• Normal length of time for pregnancy is 40 weeks• Baby born before 37 week is completed is considered premature
  10. 10. Pregnancy Progression
  11. 11. Ova• Female sex cell• Also known as egg• Produced in ovaries• Ovum fuses with sperm to produce embrio