The Female Genital Organs SHANDONG UNIVERSITY Liu Zhiyu The Female Genital Organs Composion: Internal genital organs Ovaries Conveying Uterine ductstubes Uterus Vagina External genital organs Ⅰ.internal genital organs Ovary Position-lies in the ovarian fossa in the angle between the internal and external iliac vessels on the lateral pelvic wall. Shape-an ovoid organ Superior pole Inferior pole Anterior border Mesovarian border Hilum of ovary internal genital organs Posterior border-free border Two surfaces-medial and lateral Supporting structures Suspensory ligament of ovary Proper ligament of ovary Function: Produce ovasecrete estrogens internal genital organs Female Reproductive Cycle internal genital organs Uterine tube General features About 10cm long Located in the upper edge of broad ligament of uterus internal genital organs Four parts Infundibulum of uterine tube Fimbriae of uterine tube ovarian fimbria Ampulla of uterine tube relatively wide, tortuous, longst part, where the fertilization of the ovum takes place internal genital organs Isthmus of uterine tube -straight and narrow portion, is the place where the tubal ligation is performed Uterine part, pierces uterine wall and opens into cavity of uterus by uterine orifice of uterine tube internal genital organs Uterus General features- muscular pear-shaped organ Three parts Fundus of uterus Body of uterus Neck of uterus Vaginal parts of cervix Supravaginal parts of cervix internal genital organs Uterus Isthmus of uterus -short constricted part, between the body and the neck of uterus, internal genital organs Uterus Interior cavity of uterus -the cavity of body of uterus, is triangular in coronal section Cavity Canal of cervix of uterus -the cavity of the neck, opens into the vagina at the orifice of uterus internal genital organs Uterus Position Lies in the center of the pelvic catity, between bladder and rectum; usually it is anteversion 前倾 anteflexion 前屈 internal genital organs Uterus Position Anteversion -axis of uterus meet with that of vagina at about 90o ; Anteflexion -axis of body of uterus is bent forward to form an angle of about 170o with that of the cervix . internal genital organs Supports of uterus Pelvic diaphragm Ligaments Broad ligament of uterus Round ligament of uterus Cardinal ligament of uterus Uterosacral ligament of uterus internal genital organs Broad ligament of uterus Mesosalpinx for the uterine tubes Mesometrium for the ovary Mesovarium internal genital organs Round ligament of uterus maintain in anteversion position of uterus Cardinal ligament of uterus support the position of uterus to prevent from dropping. Uterosacral ligament of uterus maintain in anteverted position of uterus internal genital organs Vagina Flattened fibromuscular tube, about 8~9cm long Extends upward and backward from vestibule to uterus Fornix of vagina Formed between cervix and walls of vagina Posterior fornix Lateral parts Anterior part deepest and larger part and related to the rectouterine pouch closely. internal genital organs Accessory gland Great vestibular gland On either side of vaginal orifice Open on both sides of orifice of vagina Ⅱ.External genital organs Mons pubis Greater lips of pudendum Lesser lips of pudendum Vaginal vestibule Clitoris Bulb of vestibule Ⅲ. The mammae Position • Lie in superficial fascia over the pectorals major and pectoral fascia • Extend from 3rd to 7th ribs vertically, and from parasternal line to midaxillary line transversally Ⅲ. The mammae Shape: in the young adult female (nullipara) the mamma forms a round eminence. The mammary niple 乳头 is on the center of the mamma, and commonly lies at the level of the fouth intercostal space . areola乳晕:pigmented area surrounded the niple Ⅲ. The mammae Structures- The mamma consists of skin, mammary glands and adipose tissue; Each brest has about 15~20 lobes of mammary gland 。 Each lobe has has a lactiferous duct which opens separately on the summit of the nipple and possesses a dilated lactiferous sinuses just prior to its termination Ⅲ. The mammae • Suspensory ligaments of breast (cooper’s ligaments )-strands of connective tissue runs between skin and deep fascia and serve to support the mammary glands