Sexual Arousal and Response Flashcards
Models of Sexual Response Female Orgasm Substances and Sexual Response
Masters and Johnson: Four Phase Model
1) Excitement
2) Plateau
3) Orgasm
4) Resolution
Erotic Arousal
Vasocongestion: Accumulation of blood in erectile tissue
Myotonia: Muscle tension and contraction
Excitement Phase in Bodies with Vulvas
Swelling of clitoris, nipples, breasts and inner lips.
Inner lips open
Vaginal lubrication
Upper 2/3 of the vagina balloons
Uterus be omes engorged and elevated
Feelings of pressure or fullness in the pelvis.
Excitement Phase in Bodies with Penises
Penile erection (corpora cavernosea and corpus spongiusum)
Erection of nipples
Tightening of scrotum
Plateau in All Bodies
Peak vasocongestion
Increase in breathing, pulse, and blood pressure.
Intense vasocongestion and myotonia
Carpopedal spasms - muscle contractions in hands and feet
Sex flush - 1 in 4 men and 3 in 4 women
Plateau in Bodies with Penises
Cowpers glands secretions - pre-cum/pre-ejaculate
Plateau in Bodies with Vulvas
Formation of orgasmic platform
Clitoris retracts
Inner lips (labia minora) double or triple in size which pushes outer lips (labia majora) apart
Orgasm in All Bodies
1) Muscle tension and pelvic engorgement build to a climax
2) Series of rythmic contractions of pelvic organs and anal sphincter that expel blood from pelvic tissues back into circulation
3) Typically 3 to 15 contractions per .8 second intervals
4) Intense myotonia and spasms - essentially, a series of pleasurable muscle contractions
Two Phases of Orgasm in Bodies with Penises
Emission Stage
Expulsion Stage
Emission Stage
Contractions of teh prostate, seminal vesicle, and upper part of the vas deferens
Force of contractions propels seminal fluid into the urethral bulb
“Point of no return”
Expulsion Stage
External sphincter of baldder relaxes, allowing passage of semen.
muscle around urethra, urethral bulb and base of penis contract to force semen through teh urethra.
Pleasure tends to be related to strength of contractions.
Resolution
Body returns to pre-aroused state
Blood flows back to rest of the body
Muscle tension dissipates
Refractory period for bodies with penises
Physiologically incapable of experiencing another orgasm or ejaculation
Depending on age, can range between a few minutes up to a full day
Limitations of M&J Sexual Response Cycle
1) Ignores psychological, relational, and sociocultural aspects
2) Expected men and women to go through the same phases in the same order
3) Research selection bias for “orgasmers”
Kaplan’s Three Stage Model (3 independent Phases)
Desire (cognitive)
Vasocongestion (erections and lubrication)
Muscular Contractions (Orgasm)
Basson’s Intimacy Model
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