Fig 27 10 Female reproductive system ovaries The

Fig 27. 10 Female reproductive system ovaries The ovaries & uterus are held in place by ligaments in the pelvic cavity

The Female Reproductive System • Ovaries – ligaments support and stabilize • Uterine tubes • Uterus – enclosed within broad ligament • Vagina • External genitalia

Homologies

Development

The Ovaries • Held in position by ovarian ligament and suspensory ligament • Ovarian artery and vein enter at ovarian hilum • Covered by tunica albuginea

Ovary

Ovary Histology Nice images also at Blue histology You tube shotgun histology

Menstural Cycle • Ovarian cycle • • Occurs monthly in ovarian follicles Primordial follicles develop into primary follicles Theca granulose cells surround oocyte – Release estrogens, estradiol Follicular fluid encourages growth of secondary follicles One mature Graffian follicle develops Primary oocyte undergoes meiosis producing secondary oocyte Ovulation – Secondary oocyte surrounded by corona radiata released

Fig 27. 11

Mature follicle 2 -primary follicle 5 -oocyte

Uterine (Fallopian) Tubes • • Fimbriae Infundibulum Ampulla Isthmus

Uterus • Mechanical protection and nutritional support to developing embryo • Bends anteriorly (anteflexion) • Stabilized by broad, uterosacral, round, and lateral ligaments

Compare cycles

Menstrual Cycle

If fertilization does occur

FYI

FYI Sperm count range from 20 – 100 million sperm per cubic m. L

Chorion - villi Amnion Chorionic gonadotropin HCG

FYI

FYI

FYI 772 in text book

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FYI Epidural shot

Amniocentesis and CVS Health Videos