CH 14: Sexual Behaviours and Relationships Flashcards
what did Masters and Johnson study?
- first researchers to investigate sexual response cycle
- published book Human Sexual Response
- focused on physiological aspects of sexual response
2 fundamental processes of sexual response
1) myotonia= muscle tension
2) vasocongestion= swelling
what is an orgasm
- intense sexual arousal that briefly peaks and is followed by rhythmic contractions of pelvic muscles
- Almost always associated with ejaculation in men (some women also)
4 phases of sexual response cycle
1) excitement
2) plateau
3) orgasm
4) resolution
excitement phase of sexual response cycle
vasocongestion results in penile erection and vaginal lubrication
plateau phase of sexual response cycle
levelling off of responses
orgasm phase of sexual response cycle
- briefest phase
- muscle spasm
- ejaculation in males
- vaginal and uterine contractions in females
resolution phase of sexual response cycle
sexual system returns to its unaroused state
Mans genital during sexual response cycle
–> excitement
- full erection of penis
- testes elevate toward perineum
- skin of scrotum tenses, thickens and elevates
Mans genital during sexual response cycle
–> plateau
- colour of penile glans deepens
- cowper’s gland secretion
- prostate enlarges
- scrotum thickens
- testes increase in size and are fully elevated
Mans genital during sexual response cycle
–> orgasm
- vas deferens contracts
- internal sphincter of bladder contracts
- seminal vesicle contracts
- anal sphincter contracts
- prostate gland contracts
- penile contracts
- urethral contraction
Mans genital during sexual response cycle
–> resolution
- erection disappears
- testes descend
- scrotum thing and folds return
- loss of testicular congestion
- unstimulated
vagina uterus during sexual response cycle
–> excitement phase
- uterus elevates up and away from vagina
- vaginal lubrication appears
- inner labia swell
- clitoris enlarges
vagina uterus during sexual response cycle
–> plateau phase
- inner 2/3 vagina expands and lengthens
- outer third of vagina forms orgasmic platform
- inner labia increase in size and turn bright red
- uterus fully elevated
clitoris retracts under hood
vagina uterus during sexual response cycle
–> orgasm phase
- uterus contracts
- orgasmic platform contracts
- anal sphincter contracts
vagina uterus during sexual response cycle
–>resolution phase
- uterus shrinks, returns to normal position
- cervix drops to its normal position
- vagina returns to its unaroused position
- outer and inner labia return to normal size
- clitoris returns to normal size and position
body during sex 3 stages
1) Serotonin, adrenaline released, the dopamine released
2) Plateau: NE is released during stimulation,
3) Orgasm: oxytocin level peaks
Masters & Johnson don’t take into account ….
the brain, and cognitive processes involved
Kaplans 3 stage model
proposed 3 independent phases
1) desire– cognitive (subjective)
2) excitement – vasocongestion
3) orgasm– contraction
diversity in sexual relationships
- most people will form a monogamous relationship at some point in their life
- most relationships that become monogamous start with dating
dating is viewed as…
courtship stage where partners are not sure how long they will choose to stay together
- most young north americans begin to date, in large groups around age 10-11
Sexual explicit materials
textual, visual and or audial material that promotes or creates sexual arousal
sexual satisfaction in long term relationships can fluctuate due to what circumstances (3)
- childbirth
- stress
- hormonal changes
frequency of sex may decline mainly due to …
factors of aging
- not duration of the relationship
- 87% of married couples and 92% of cohabitating couples have sex monthly or weekly
6 Factors play role in determining at what age a person will first have sexual intercourse – all linked to later age of first intercourse
- Positive emotional connections with family members
- Parental disapproval of early sex and contraceptive use
- Greater parental control
- Higher peer-related self-esteem
- Academic achievement and participation
- Greater religiosity
Earlier age first sexual intercourse 4 factors
- Greater peer pressure to have sex
- Substance use with friends
- Having older partner
- Prior experience of unwanted sexual contact