Female Reproductive System

• Female Reproductive System

  A) Vagina

  B) Cervix

  C) Ovary

  D) Fallopian tube

  E) Fimbriae

  F) Uterus

  
• Female Reproductive System

  A) ovaries

  B) fallopian tubes

  C) fimbriae

  D) uterus

  E) cervix

  F) vagina

  G) estrogen

  H) progesterone

  
• Ovarian Cycle

  • series of events in the ovaries that occur during and after the maturation of the oocyte
• Follicular phase

  • three-thirty follicles begin to grow
  • only on of these follicles (dominant follicle) continues to grow while the other stimulated follicles disintegrate
  • lasts for about 13-14 days

  
• Ovulatory Phase

  • dominant follicle bulges from the surface of the ovary and ruptures, releasing the oocyte
  • lasts for 16-32 hours

  
• Luteal phase

  • begin after ovulation
  • lasts about 14 days, unless fertilization occurs
  • ruptured follicle forms a structure called a corpus luteum which secretes progesterone and estrogen.

  
• Menstrual Cycle

  • Menstruation is defined as the shedding of the lining of the endometrium accompanied by bleeding
  • average time for one cycle is 28 days but can vary from 25-36 days.
• Menstrual flow phase

  • lining of the endometrium is thick with fluids and nutrients designed to nourish the embryo
  • If there is no fertilization, the top layers of the endometrium will be shed and menstrual bleeding occur.
  • lasts for 3-7 days with an average of 5 days
• Proliferative phase

  • regeneration and thickening of the endometrium takes place
  • lasts for about 1-2 weeks
• Secretory phase

  • endometrium continues to thicken and the vascularization of the endometrium increases
  • it develops gland that secrete glycogen-rich fluid to nourish a potential fetus
  • lasts for 2 weeks
• Phases and Cycles