bmft 651: sexual therapy
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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BMFT 651: Sexual TherapyFebruary 2, 2010
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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)
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Female Sexual Anatomy
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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
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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
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The Vulva
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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
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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
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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
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Internal Female Sexual Anatomy
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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
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Break9:00-9:15
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Male Sexual Anatomy
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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
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The Penis
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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
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External Male Sexual Anatomy
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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
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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
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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
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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
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Semen
Semen - viscous fluid ejaculated through penis that contains sperm & fluids from the prostate, seminal vesicles, & Cowper’s glands
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Internal Sexual Anatomy
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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.
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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
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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
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Ejaculation
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Next Week
✤ Topics
✤ Prenatal sexual development
✤ Sexual arousal & response
✤ Reading - Basson