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BMFT 651: Sexual Therapy

BMFT 651: Sexual Therapy. February 2, 2010. Agenda. Female sexual anatomy (8:00-9:15) Break (9:15-9:30) Male sexual anatomy (9:30-10:30) Anatomy videos(10:30-10:50). Female Sexual Anatomy. The Vulva. Mons veneris - mound of fatty tissue over the pubic bone Labia majora - outer lips

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BMFT 651: Sexual Therapy

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  1. BMFT 651: Sexual Therapy • February 2, 2010

  2. Agenda • Female sexual anatomy (8:00-9:15) • Break (9:15-9:30) • Male sexual anatomy (9:30-10:30) • Anatomy videos(10:30-10:50)

  3. Female Sexual Anatomy

  4. The Vulva • Mons veneris - mound of fatty tissue over the pubic bone • Labia majora - outer lips • Labia minora - inner lips • Clitoris - highly sensitive; only function is sexual pleasure • External shaft & glans • Internal crura & clitoral hood

  5. The Vulva • Vestibule - area of vulva inside labia minora • Urethral opening • Introitus - opening to vagina • Hymen - tissue that partially covers vaginal opening • Perineum - area between anus & vagina

  6. The Vulva

  7. The Vagina • Stretchable canal that opens at the vulva & extends about 4” into pelvis • Kegel exercises • Grafenberg (G) spot - located at front wall of vagina • Vaginal lubrication • Enhances possibility of conception • Increases sexual enjoyment • Vaginal secretions • Sign of vaginal health • Frequent douching alters chemical balance

  8. Other Internal Structures • Cervix - small end of uterus, located at back of vagina • Uterus - pear-shaped organ inside pelvis within which fetus develops • Perineum - external layer • Myometrium - middle layer • Endometrium - tissue that lines inside of uterine walls

  9. Other Internal Structures • Fallopian tubes - tubes in which egg & sperm travel, extending from sides of uterus • Egg travels 1” every 24 hours & remains viable for fertilization for 24-48 hours • Ectopic pregnancy - when a fertilized ovum implants outside the uterus, most commonly in the fallopian tube • Ovaries - female gonads that produce ovum & sex hormones

  10. Internal Female Sexual Anatomy

  11. Breasts • Internal • Mammary glands produce milk • Fatty tissue determines size • External • Areola - darker area; contains oil-secreting glands • Nipple - in center of areola & has 12-15 openings for milk

  12. Break • 9:00-9:15

  13. Male Sexual Anatomy

  14. Penis • Foreskin, glans, shaft, & root • Nerves, blood vessels, & fibrous tissue • Glans - has most nerve endings • Rim or crown is especially sensitive as is the frenulum • Three parallel cylinders • Two large cavernous bodies • One smaller spongy body • Kegel exercises • Stronger & more pleasurable orgasms • Better ejaculatory control • Increased pelvic sensation during sexual arousal

  15. The Penis

  16. The Scrotum • Sac or pouch with two chambers - each chamber contains one testicle • Muscle layer pulls closer to body in cold temperatures or when aroused • Spermatic cord attaches to testicle & contains vas deferens, nerves, blood vessels, & muscle fibers

  17. External Male Sexual Anatomy

  18. The Testes • Functions of testes • Secretion of male sex hormones • Production of sperm • Cryptorchidism - undescended testes • Affects 3-4% of infants & 30% of premature infants • Prevents sperm production • Increases chances of infertility, hernia, or testicular cancer

  19. The Testes • Seminiferous tubules - site of sperm production • Interstitial cells - located between seminiferous tubules; major source of androgen • Epididymis - responsible for maturation, storage, & selection of normal sperm

  20. Other Internal Structures • Vas deferens • Moves sperm from scrotum to ejaculatory duct within prostate gland • Ejaculatory ducts on each side open up into urethra • Seminal vesicle • Adjacent to end of each vas deferens • Secretes 70% of seminal fluid • Alkaline fluid nourishes or energizes sperm

  21. Other Internal Structures • Prostate gland • Secretes about 30% of seminal fluid • Fluid counteracts the acidity of the male urethra & female vagina • Cowper’s gland • Attaches to urethra below prostate • Secretes mucousy substance before ejaculation that may contain active, healthy sperm

  22. Semen Semen - viscous fluid ejaculated through penis that contains sperm & fluids from the prostate, seminal vesicles, & Cowper’s glands

  23. Internal Sexual Anatomy

  24. Male Sexual Functions • Erection - process whereby penis or clitoris engorges with blood & increases in size • Psychogenic erections - from the mind • Physiogenic erections - from the body • In most cases, there is input from both the mind & the body. • Erections do not always occur in response to sexual arousal.

  25. Male Sexual Functions • Ejaculation - process whereby semen is expelled from the body through the penis • Emission phase - first stage of male orgasm in which seminal fluid is gathered in the urethral bulb • Expulsion phase - the second stage of male orgasm during which the semen is expelled from the penis by muscular contractions

  26. Male Sexual Functions • Retrograde ejaculation - process by which semen is expelled into the bladder instead of out of the penis • Not harmful • May be caused prostate surgery, illness, congenital anomaly, & drugs such as tranquilizers • Nocturnal emissions - involuntary ejaculation during sleep

  27. Ejaculation

  28. Next Week • Topics • Prenatal sexual development • Sexual arousal & response • Reading - Basson

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