The Menstrual Cycle

Jessica Gonzalez

What is it?

your body sheds the lining of the uterus (womb). Menstrual blood flows from the uterus through the small opening in the cervix and passes out of the body through the vagina

Stages of the Menstrual Cycle

  • Follicular phase - starts on the first day of menstruation, Each follicle houses an immature egg. Usually, only one follicle will mature into an egg, while the others die. This can occur around day 10 of a 28-day cycle
  • Ovulation- ovulation is triggered by the high levels of LH. The egg is funnelled into the fallopian tube and towards the uterus by waves of small, hair-like projections.
  • Luteal phase This structure starts releasing progesterone, along with small amounts of oestrogen. This combination of hormones maintains the thickened lining of the uterus, waiting for a fertilised egg to stick
  • Menstruation Menstruation is the elimination of the thickened lining of the uterus from the body through the vagina.

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  • amenorrhea- with out a period
  • dysmenorrhea- painful menstruation, abdominal cramps, happens in a result of medical problems such as endometriosis
  • premenstrual syndrome (PMS)- variety of symptoms, including mood swings, tender breasts, food cravings, fatigue, irritability and depression
  • menopause- A natural decline in reproductive hormones when a woman reaches her 40s or 50s. some symptoms are fatigue, night sweats, osteoporosis, hot flashes, or sweating