10 Sex Hormones Androgens – primarily male hormones Steroids promote masculinization in males and femalesAdrenal glandsTestosterone promotes masculinization in males and females; regulates other sexual functions in womenMales: Testes, adrenal glandsFemales: Ovaries, adrenal glandsPrimarily female hormones – Female secondary sex characteristics, menstrual cycle, gestation, and sexual functioning in menEstrogenOvaries, Adrenal glands, TestesProgesterone“For Pregnancy”Corpus luteum, Adrenal glands, PlacentaProg. Produced by corpus luteum for about first 6 months of pregnancy by when the placenta has taken over.
11 Sex Hormone Determines Gender 23rd Pair of ChromosomesXY = MaleTestosteroneXX = FemaleNo TestosteroneXYXX
14 Sexual Functioning: Stimulus – Response Cycle (Fig. 5-4, p. 134) Physical StimulusPsychological StimulusStages of Sexual ResponseExcitementPlateauOrgasmResolution
15 Sexual Response Terms Vasocongestion Myotonia Refractory period Accumulation or engorgement of bloodMyotoniaIncreased muscle tensionRhythmic muscular contractionsRefractory periodMen: have a refractory periodCannot immediately be re-stimulated to orgasmWomen: no refractory period
17 Common Sexual Health Problems (p. 135) Physical (biological) conditionsVaginitis (including yeast infection)EndometriosisPelvic inflammatory disease (PID)ProstatitisTesticular cancer50-75% of PID cases are caused by a STI organism associated with diseases like gonnorhea and chlamydia. Infection of upper reproductive tract.
18 Common Sexual Dysfunctions (p. 135) Disturbances in sexual desire, performance, or satisfaction that have physical and/or psychological originsVaginismusOrgasmic dysfunctionErectile dysfunction (impotence)Premature ejaculationRetarded ejaculation
19 Sexual Dysfunction is Common Results from a national survey of people aged 18 to 59 years reported in the February 10, 1999, issue of The Journal of the American Medical Association indicate that sexual dysfunction was common among women (43 percent) and men (31 percent).
21 Development of Sexual Behavior Gender roles – your everyday behavior and attitudes based on your sexGender identity – your inner sense of being male or femaleCultural differences – culturally expected or appropriatePortrayal of sex in the mediaChildhood and adolescenceAdult sexual experiencesDisability or illnessSexual orientationCombination of biological, psychological, and social factors
23 Varieties of Sexual Behavior Celibacy, or abstinenceMasturbationTouchingOral-genital stimulationCunnilingusFellatioAnal intercourseVaginal intercourse
24 Ask yourself the following: Is this sexual behavior healthy and fulfilling for me and/or my partner?Is it safe?Does it lead to the exploitation of the other?Does it take place between responsible, consenting adults?Pluralistic society carries over into our sexual practices. Instead of generalizations about what is normal and abnormal, ask these questions to explore your feelings about what is normal for you.
25 Responsible Sexual Behavior Making choices about your sexual behavior directly affects you and another personCommunicationAgreed-upon activitySexual privacyContraception useSafer sexSober sexBe responsible for consequences
26 On your own…Worksheet #38Tips for Today, p. 147