Chapter 4 print version

Chapter 4 print version - Chapter 4: Female Sexual Anatomy...

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Chapter 4: Female Sexual Anatomy The Female Sexual and Reproductive System 0. External Sex Organs 1. Internal Sex Organs 2. Other Sex Organs External Sex Organs 3. Vulva/Pudendum – entire female region of external sex organs 4. Mons Veneris – protective, fatty cushion over the pubic bone; covered with pubic hair 5. Labia Majora – outer lips; tissue folds from mons to perineum surrounding the rest of the female genitals; engorge with blood if excited 0. Outer: covered with pubic hair; pigmented 1. Inner: hairless; oil glands External Sex Organs 6. Labia Minora – inner lips; pink tissue folds between vestibule and labia majora; no hair; many oil glands; darken if sexually aroused 7. Clitoris – small cylindrical erectile tissue beneath the prepuce; rich in blood supply and nerve endings; solely to provide sexual pleasure, primarily via indirect stimulation 2. Circumcision 3. Infibulation External Sex Organs 8. Vestibule – region between the labia minora; urethral and vaginal openings, Bartholin’s glands ducts 9. Urethral Meatus – between clitoris and vagina 10. Introitus External Sex Organs 11. Hymen – layer of tissue coveriFg the introitus at birth, typically with an opening; great variation in size and form; may tear and bleed during first intercourse; other activities can cause its degeneration; hymen-plasty 12. Bartholin’s Glands – ducts empty into the vestibule; may produce a genital scent, but don’t produce enough lubrication for sex
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13. Perineum – between anus and vagina The external genital structures of the mature female. Internal Sex Organs 14. Vagina – 4 inch, thin-walled accordion-like tube from the introitus to the cervix, tilted back; organ of intercourse and canal for menses and babies; lubricant secreted from vaginal wall openings when engorged; first 1/3 contains many nerve endings, inner 2/3 has little nerves Internal Sex Organs 15. Grafenberg Spot (G-spot) – dime to quarter sized spot in the lower third of anterior vaginal wall (2-3 inches up), just past the pubic bone; sensitive area; controversy 4. Female ejaculation – powerful orgasms and expulsion of fluid (up to 4 ounces) due to stimulation of the G-spot in some women; may be Skene’s glands fluid or urine Internal Sex Organs 16. Uterus – 1-inch thick walls, hollow, muscular organ between the bladder and rectum; monthly cycle of change; menstruation, protects fetus, contractions to expel menses and fetus; 3 inches long, 2 inches wide 5. 3 uterine wall layers: 17. Perimetrium 18. Myometrium 19. Endometrium Internal Sex Organs 20. Cervix – at bottom of the uterus; doughnut-shaped; secretes mucus to help or impede sperm, depending on the monthly cycle 6. Os – opening leading into the uterus Internal Sex Organs 21. Fallopian Tubes (oviducts) – two 4-inch long trumpet shaped tubes that extend from the sides of the uterus and curve up to and around the ovaries 7. Ampulla – typical site of fertilization
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8. Infundibulum – has fimbriae surrounding the ovaries
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This note was uploaded on 04/02/2008 for the course HD 2314 taught by Professor Krallen during the Fall '08 term at Virginia Tech.

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Chapter 4 print version - Chapter 4: Female Sexual Anatomy...

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