Menstrual cycle.ppt

MENSTRUAL CYCLEMENSTRUAL CYCLE

TRIONO ADI SUROSO, MD,SpOGTRIONO ADI SUROSO, MD,SpOG

trionoobgyn@yahoo.com.sg

trionoobgyn@indosat.blackberry.com

Menstrual CycleMenstrual Cycle

Menarche – MenopauseMenarche – MenopauseRange : 25 – 36 daysRange : 25 – 36 days10 - 15%: 28 days10 - 15%: 28 daysMenstrual bleeding: 3 – 7 days ( 5 days)Menstrual bleeding: 3 – 7 days ( 5 days)Blood loss: 0.5 – 2.5 ouncesBlood loss: 0.5 – 2.5 ouncesRegulated by hormonesRegulated by hormones3 phases: follicular – ovulatory – luteal 3 phases: follicular – ovulatory – luteal

Endocrine SystemEndocrine System

1.1. Pineal glandPineal gland

2.2. Pituitary glandPituitary gland

3.3. Thyroid glandThyroid gland

4.4. Thymus Thymus

5.5. Adrenal glandAdrenal gland

6.6. Pancreas Pancreas

7.7. Ovary Ovary

8.8. Testes Testes

Hypothalamus – Pituitary – Ovaries Hypothalamus – Pituitary – Ovaries

Hormones Hormones

GnRHGnRH FSHFSH LHLH Estrogen Estrogen Progesterone Progesterone

Endometrium Endometrium

Menstrual Phase: 1-4, Menstrual Phase: 1-4, thin, no epitheliumthin, no epithelium

Proliferative Phase: 4-Proliferative Phase: 4-14, intermediate, 14, intermediate, columnarcolumnar

Secretory Phase: 15-Secretory Phase: 15-28, thick, columnar + 28, thick, columnar + helicine uterine arteryhelicine uterine artery

Follicular phaseFollicular phase

Follicle developmentFollicle development 13 – 14 days13 – 14 days FSHFSH Estrogen productionEstrogen production LH surgeLH surge Egg release Egg release

Ovulation Ovulation

LH surgeLH surge Egg releaseEgg release 16 – 32 hours16 – 32 hours

Luteal phase Luteal phase

Lasts about 14 daysLasts about 14 days Rupture follicle / Rupture follicle /

corpus luteumcorpus luteum ProgesteroneProgesterone Estrogen Estrogen