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REPRODUCTIVE SYSTEM
GUIDED BY:
Dr. A. Renganthan MBBS., MBA.,
Health officer,
DRHS, GRI.
PUBERTY IN FEMALES
• Age: 10 to 14 years
• Marked by the onset of menstruation
PHYSIOLOGICAL CHANGES
• Maturation of ovaries, uterus and uterine tubes
• Enlargement of vagina and breasts
• Growth of axillary and pubic hair
• Increased growth and widening of pelvis
• Onset of menstruation and ovulation
• Increased deposition of fat in subcutaneous tissue
• Mental and emotional maturity
OVULATION
• Maturation of the graffian follicle
• Liberation of ovum
• Follicles about 40,000 in number
• All the follicles are lost at
menopause
• Ovulation rupture of the follicles
• Stimulated by luteinising hormone
[LH]of anterior pituitary gland.
MENSTRUATION
• Menstruation starts in puberty
• Stops temporarily during pregnancy
• Lost permanently at menopause
• One cycle every 28 days
• Periodic discharge of blood from uterine cavity
• Endometrium – cyclic changes to receive the
fertilized ovum
MENSTURAL CYCLE
• Destructive phase (Menstrual
phase)
• Follicular phase (Proliferative
phase)
• Luteal phase (Secretory phase)
• Menopause (climacteric)
DESTRUCTIVE PHASE
(MENSTRUAL PHASE)
Lasting for the first 5 days
Menstrual bleeding occurs
FOLLICULAR PHASE
(PROLIFERATIVE PHASE)
• It extends for the next 9 days
• Repair of the endometrium occurs
• Graffian follicle
 Secretes oestrogen
ruptures & release ovum
becomes corpus luteum
LUTEAL PHASE
(SECRETORY PHASE)
• Last for next 14 days
• Endometrium becomes thick to receive ovum
• Corpus luteum secretes progesterone
 progesterone secretes through out pregnancy
corpus luteum degenrate if not pregnant
MENOPAUSE
• Cessation of menstruation
• Occurs in 45 years of age
• Cause- Change concentration of sex
hormones
• Ovaries become less responsive - FSH
& LH
PHYSIOLOGICAL CHANGES IN MENOPAUSE
•Flushing and sweating
•Shrinkage of breast
•Atrophy of sex organs
•Episodes of uncharacteristic behaviour
THANK YOU
BY
B. MANIBALA B.Sc.,
22004063
PGDSI – B
DRHS, GRI
DINDIGUL

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REPRODUCTIVE SYSTEM.pptx

  • 1. REPRODUCTIVE SYSTEM GUIDED BY: Dr. A. Renganthan MBBS., MBA., Health officer, DRHS, GRI.
  • 2. PUBERTY IN FEMALES • Age: 10 to 14 years • Marked by the onset of menstruation
  • 3. PHYSIOLOGICAL CHANGES • Maturation of ovaries, uterus and uterine tubes • Enlargement of vagina and breasts • Growth of axillary and pubic hair • Increased growth and widening of pelvis • Onset of menstruation and ovulation • Increased deposition of fat in subcutaneous tissue • Mental and emotional maturity
  • 4. OVULATION • Maturation of the graffian follicle • Liberation of ovum • Follicles about 40,000 in number • All the follicles are lost at menopause • Ovulation rupture of the follicles • Stimulated by luteinising hormone [LH]of anterior pituitary gland.
  • 5.
  • 6. MENSTRUATION • Menstruation starts in puberty • Stops temporarily during pregnancy • Lost permanently at menopause • One cycle every 28 days • Periodic discharge of blood from uterine cavity • Endometrium – cyclic changes to receive the fertilized ovum
  • 7. MENSTURAL CYCLE • Destructive phase (Menstrual phase) • Follicular phase (Proliferative phase) • Luteal phase (Secretory phase) • Menopause (climacteric)
  • 8. DESTRUCTIVE PHASE (MENSTRUAL PHASE) Lasting for the first 5 days Menstrual bleeding occurs
  • 9.
  • 10. FOLLICULAR PHASE (PROLIFERATIVE PHASE) • It extends for the next 9 days • Repair of the endometrium occurs • Graffian follicle  Secretes oestrogen ruptures & release ovum becomes corpus luteum
  • 11. LUTEAL PHASE (SECRETORY PHASE) • Last for next 14 days • Endometrium becomes thick to receive ovum • Corpus luteum secretes progesterone  progesterone secretes through out pregnancy corpus luteum degenrate if not pregnant
  • 12. MENOPAUSE • Cessation of menstruation • Occurs in 45 years of age • Cause- Change concentration of sex hormones • Ovaries become less responsive - FSH & LH
  • 13. PHYSIOLOGICAL CHANGES IN MENOPAUSE •Flushing and sweating •Shrinkage of breast •Atrophy of sex organs •Episodes of uncharacteristic behaviour
  • 14.
  • 15. THANK YOU BY B. MANIBALA B.Sc., 22004063 PGDSI – B DRHS, GRI DINDIGUL