Chapter6Female Genital Organs ·1816.Hymen1.Mons pubisThe hymen is a thin, variable in size and shapeThe mons pubis is a fatty eminence, overlying thefold of mucous membrane in the virgins. It is usu-pubic symphysis. Ater puberty, this area is coveredally an annular or semilunar shape around the vag-with pubichair,There are two elongated,hair coveredinal orifice.Generallyit has one opening,howeverfatty skinfolds, called greater lips ofpudendum.maybe cribriform.In some cases,the opening isclosing,termedan imperforatehymen.Aftersexual2.Greaterlips of pudendumintercoursethe hymen is ruptured, small roundedfragments thehymen is ruptured, small rounded fragThey are two longitudinal prominences of skinments hymnal carunculae remaining at the site of itsfold onboth sides of thepudendumcleft.Thetwo lipsattached border of the vaginal orifice.are female counterparts which joined with each otherby the anterior labial commissure and posterior labialcommissure..Bulb ofvestibule3.Lesser lips of pudendumThe bulb of vestibule consist of two elongatedmasses of erective tissue on both sides of the vaginalThe lesser lips of pudendum are two thin,hair-orifice and urethra orifice.It is deep to the sphincterfree skin fold and fat with relativelyfew sweat glands,muscle of the vagina, as the homologous organ to theenclosedbythegreatlips of pudendum.Thelesser lipscavernous body of male urethra.enclose a recess called the vestibule, which containsthe external opening of the urethra more anteriorly8.Greater vestibular glandsfollowed by that of thevagina.At the anterior portion,they encircle the clitoris to form the prepuce of clitoris.They are the pea-size and lie in both sides of thevaginal orifice,posteriorto thebulb of vestibule4. Vaginal vestibuleThey aredeep to the sphincter muscles of the vaginaEach gland has a duct opening on the lesser lip ofThe vaginal vestibule is a cleft between the lesserpudendum.They are the homologous organs to thelipsofpudendum.Its twoendsarenarrow,whilemidbulbourethral glands of the male.dle portion is wider. Just anterior to the vestibule isSection3Mammarytheclitoris,a small protruding structure.The posteriorportion end at the frenulum of pudendal labia. ThereGlands in Femaleis a vaginal orifice in the center of the vestibule.There is an external orifice of urethra anterior toMen and women both have mammary glands.the vaginal orifice,2. 5cm inferoposteriorto the cli-In the men themammaehaveboth eminencenippletoris.There are the orifices of the greater vestibulararounded by areola of breast,whichare smallerthanglands on both sides ofthe vaginal orifice.those of women.The nipple is located on thefourthintercostal space.In female,the mammary glands begin to develop5.Clitorisand grow rapidly at puberty.During pregnancy andlactation they are developing and secreting the milkTheclitoris is a small,protruding structure,comto nourish the newborn baby.posed largely of erective tissue that is homologous tothe penis of the male.It is hooded by a skinfold namedL.Location and featurestheprepuceoftheclitoris,formedbythe junctionofthelabiaminorfoldsTheclitorisisrchly innervatedwith sensory nerveendings sensitive to touch, anditIn the young adult female, each mammary gland ismay become swollen areerect liking penis inmales.contained within a rounded skin-covered breast anterior-扫描全能王创建
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.182·PARTI SPLANCHNOLOGYating around and open at the nipple. The lobes aretothepectoralmuscles ofthethorax.Itextendsfromthepadded and separated from each other by fibrous con.thirdtoseventh ribs vertically,andfromthe parasternalnective tssue and fat.The interlobar connective tissueline to midaxillary line transversely.Thenipple is onforms suspensory ligaments attaching thebreasto thethe centerofthemamma and generally is at the levelofunderlying musclefascia and to the superior dermis.the fourth intercostal space.There are several orificesThe suspensory ligaments are termed the Cooper,softhelactiferous ducts at thewrinkled tipof the nipple.ligaments Cooper,which providenatural supportforAround the center of each breast there is a ring ofpig-the breasts, like a built-in brassiere (Fig. II-6-5)mented skin.named the areola of breast.On its surfaceWithin the lobes are smaller units called glandularthere are many small eminences of areolarglands.lobule,which contain glandular alveoli producingwhichproduce sebumto lubricatethenippleand reducethe chapping and cracking of the skin ofthenipple.milk when a woman is lactating.The lobule has anAutonomic nervous system controls smoothmus-excretory duct, termed the lactiferous duct. Just deepcle fibers in the areola, which cause the nipple erectto areolar, each lactiferous duct has a dilated regionwhen it is exposed to tactile or sexual stimulation andnamed lactiferous sinus. Milk accumulates in these si-exposed to cold.nuses during nursing.The outer end of the lactiferousducts is narrow and open on the nipple. The incisionStructureof the operation on mamma should bemade radicallyAto avoid cutting across a number of the lactiferousThe gland consists of 15 to 20 gland lobes radi-ducts (Fig. II-6-6)LobulesofmammaryglandPectoralismajorSuspensorylig.ofbreastAdipose tissueIntercostalesofbreastLactiferous ductMammaLactiferous sinusDeepfasciaofthoracicwalNipple-NippleAreolaofbreastLactiferous ductAdipose tissueofbreastLactiferous sinusFig. -6-5 The mamma of female(sagittal section)Fig.II-6-6 Themamma offemaleSun Ping(孙 平)扫描全能王创建
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