Female Genital System
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Female Genital System

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Female Genital System Female Genital System Presentation Transcript

  • Anatomy of the female genital system Presented By Tarig Salah
  • * female genital organs are classified into : 1- External Genitalia 2- Internal Genitalia *External Genitalia: include: 1-Labia Majora 2-Labia Minora 3-Clitoris *Internal Genitalia: include: 1- Vagina 2- Uterus 3- Fallopian Tubes 4- Ovaries
    • *External Genitalia:
    • 1-Labia Majora:
    • Located on either side of the vaginal opening , extending from the Mons pubis to the perineum
    • They are two folds of skin contain: skin-subcutaneous tissue , sebaceous glands , sweat glands and hair follicles
    • 2-Labia Minora
    • Two thin folds of tissue located within the folds of the labia majora
    • They extend from the clitoris downward toward the perineum
    • They contain skin - sebaceous glands-sweat glands and no hair follicles
    • 3-Clitoris:
    • small, elongated organ composed of erectile tissue , nerves and blood vessels
    • * Internal Genitalia:
    • 1. Vagina
    • * Location and description :
    • The vagina is a muscular tube that extends upward and backward from the vulva to the uterus
    • It measures about: 8-10cm in length and 2cm in thickness and lined by stratified squamous epithelium.
    • PH : acidic due to action of on glycogen and becomes slightly alkaline in menses , pregnancy , before and after reproductive period.
    • Blood supply:
    • -vaginal artery: branch of IIA
    • -vaginal branch of the uterine artery
    • - vaginal plexus drains into IIV
    • *Supports of the vagina:
    • -Upper part: by pelvic fascia to levator ani muscles –transverse cervical-pubocervical and sacrocervical ligaments.
    • -middle: by urogenital diaphragm.
    • -lower: by perineal body posteriorly.
  • Relations: -Ant_: bladder above &urethra below -Post_:the rectum ’ rectouterine pooch & perineal body. -Lat_: upper part is related to levators ani &uterine artery
    • #N.e:
    • Fornix: is a cavity of the vagina by the sides of the cervix (one ant., one post, and 2 laterals.)
    • *Papanicolaou found that vaginal smears may contain cells which indicate early onset of Ca Cx.
    • *Uterus
    • It is a hollow ‘ pear-shaped organ with thick muscular wall in which the embryo and fetus normally develop & grow.
    • *The wall of the uterus has 3 layers:
    • 1-Endometrium
    • 2-Myometrium
    • 3-Perimetrium
    • *In young nulliparous it measures: 7.5cm---length 5cm---wide 2.5---thick
    • But in general Its size differ according to the age
    • The uterus is divided into: 1-fundus 2-body 3-cervix
    • 1-The fundus: lies above the entrance of uterine tubes
    • 2-The body: lies below the entrance of uterine tubes and above the Cx.
    • 3-The cervix: from the internal os to external os ‘ it has uterine & vaginal parts
    • The lower segment of the uterus characterized:
    • 1-anatomically: it is loosely attached to peritoneum
    • 2-physiologically: it is retractile & not contractile
    • 3-It is 6cm above the internal os
    • *Blood supply:
    • -Uterine artery: from internal iliac artery ‘ it has :
    • 1-Ascending branch: which anastomoses with ovarian artery to supply the body&ovary.
    • 2-Descending branch: to supply the Cx
    • Relations:
    • *-ant: separated from U.bladder by uterovesical pouch.
    • *-Post: separated from the rectum by rectouterine pouch.
    • *-Lat: broad ligament and uterine artery&vein
    • *Fallopian tubes:
    • They consist of 4 parts:
    • 1-interstitial (intramural) 2-isthmus
    • 3-ampulla 4-infundibulum
    • *Ovaries:
    • They are intra peritoneum ‘ almond-shaped organs producing oocytes and hormones and about:3×2×1cm in size ‘ Postmenopausal size is smaller.
    • *Blood supply:
    • -arteries: by ovarian arteries from the abd-aorta at level of L1
    • -veins: Rt----IVC Lt----Lt renal vein
  •