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human sexuality

Testes-the male gonads (sex glands) Develop in abdominal cavity as fetus. Descend into scrotum before birth.
2 major functions of testes Production of testosterone Production of sperm
Epididymus – tubular structure on each testis in which sperm cells mature
Vas Deferens – tube that transports sperm from the testes to seminal vesicle
Scrotum pouch of skin containing testes and epididymus Darker and more wrinkled at puberty Contains muscle fibers that influence position of testes
Testes move in relation to...? One usually hangs lower than the other Very sensitive temperature,stress, and arousal
Glans smooth, rounded head of penis Extremely sensitive Partially covered by foreskin at birth
Urethral opening – at tip of glans
Shaft longer body of penis Loose – allows for erections Contains cylinders of erectile tissue
Seminal Vesicle – gland at end of each vas deferens Secretes chemical to make sperm motile About 70% of seminal fluid
Prostate – gland underneath bladder (and surrounding urethra) Also secretes some chemicals in semen Prevalence of prostate problems…
Cowper’s Glands – Coat the urethra for sperm There are 2 at base of penis
Vulva = Female external sex organs Great variation in sizes and shapes Entire area is a major erogenous zone Especially visible: mons and labia majora
Mons – cushion of fatty tissue over pubic bone.
Labia Majora 2 folds of skin covering and protecting INNER, more sensitive organs Inner organs unseen unless they are parted
Labia Minora two inner folds of skin Surround Vaginal and Urethral openings Meet above clitoris to form a hood
Vaginal opening (introitus) May not be seen as an “opening” Partially covered by hymen
Clitoris especially sensitive organ where labia minora meet.
Glans – sensitive head of clitoris, is visible
Glans has as many nerve endings as the head of a man’s penis. Sole purpose seems to be related to arousal and pleasure
Shaft – (female) longer body of clitoris, contains erectile tissue
Vagina – muscular, elastic canal Best described as “potential space” Some degree of muscular control is possible
Hymen – membrane of tissue covering the vaginal opening
the Hymen.... present at birth, varies in thickness and in number of holes No known function, but historically has been a sign of virginity If present at first intercourse, some pain and bleeding may occur.
Uterus (womb) – thick walled, pear-shaped, muscular organ Provides nourishing environment for fetus
3 layers of the uterus.... Perimetrium Myometrium Endometrium
Perimetrium thin outer cover
Myometrium thick middle layer of muscle
Endometrium – inner layer, rich in blood vessels
Cervix – “neck” of uterus that extends to back of vagina.
Ovaries – Secrete sex hormones Development of egg cells (ova) almond-shaped glands on both sides of uterus (and attached to it)
Fallopian tubes – extend from uterus to the ovaries
Fimbriae – fingerlike projections that hover over ovaries
Areola – darkened skin around nipple
Breasts Little variation in amount of milk glands Variations of breast sizes and shapes are due to variations in fatty tissue
Dimensions of Sexuality- 1. Natal Sex 2. Sexual Identity 3. Gender role 4. Sexual Orientation
Natal Sex – physical and biological features present at birth. (boy or girl)
Sexual Identity – a person’s sexual self-concept
Gender role – Gender identity as defined by culture
Sexual Orientation – direction of erotic attraction
Authentic Sexuality “something that is genuine or real.”
The Six Principles 1. Differentiation and Unity 2. Deeper Levels of Knowing 3. Capacity for Pleasure / the Family 4. Sexuality and Spirituality 5. Sexuality in Need of Redemption 6. Restoration and Renewal
1. Differentiation and Unity Genesis 1:26-28, 31 We are made different – and it was very good. We were made for fellowship, the primary human fellowship being male-female Differentiation makes unity special Genesis 2:23
2. Deeper Levels of Knowing Of ourselves, others, & God Sex isnt just for procreation. Urges us to deeply share our lives To experience vulnerability Find a relationship of tenderness & respect – neither escaping or exploiting intimacy
Deeper Levels of Knowing Cont.... -->Sexual desire helps us recognize our ...? incompleteness
3. Capacity for Pleasure / the Family Each person born with capacity for pleasure from day 1. Development of this sexuality is accomplished best through family
3. Cont --> Development of this sexuality is accomplished best through family -Interdependence based on respect for gender differences -Maintaining individual boundaries -Promoting communication -Sharing sexual values
4. Sexuality and Spirituality Spirituality not just relevant, but essential. Analogous experiences Desire is a positive force
5. Sexuality in Need of Redemption -God’s perfect design now corrupted -Our sexuality is part of our fallen nature -But this needs to be put in perspective -We need to be intentional/purposeful -We need more than a list of rules
6. Restoration and Renewal The Holy Spirit empowers us to live out our broken life in a broken world. Healing and restoration is available
6. Restoration and Renewal cont. “We all have needs, deficits, and wounds to heal, and our hope lies in the belief that our God wants to make ‘something new’ because we are willing to die, over and over, to our old selves.”
4 major relationship themes found in Scripture 1.Covenant 2.Grace 3.Empowerment 4.Intimacy
Covenant – to love and be loved Not temporary or contractual
Grace – to forgive and be forgiven Not shaming, blaming, or judging
Empowerment – to serve and be served Not controlling or coercing
Intimacy – to know and be known Not distancing or defensive
2 critical ingredients for intimacy (1) differentiation (2) communication
Cultural factors of change- 1. Increased resistance to centralized, institutionalized authority. -Emphasis on individual rights to sexual freedom and expression
Cultural factors of change- 2. Changing roles of men and women Traditional roles have become less rigid -Greater acceptance of individual fit -Example from today – metrosexuals
Cultural factors of change- 3. Scientific Research / Technological Developments -Removed much of the mystery of sex -Contraception, reproduction, abortion
Cultural factors of change- 4.Media and Internet Attention -BIG increase in sexual images/themes -TV/magazines/books: 1950s vs. 2000s. -Impact of internet
Cultural factors of change- 5. HIV/AIDS Increased awareness for "safe sex"
Cultural factors of change- 6. Nature vs. Nurture
Late 19th century Richard von Krafft-Ebing -Psychopathia Sexualis in 12 editions -First major classification of abnormality -Masturbation was cause of all deviations
Late 19th century Sigmund Freud -Psychosexual development of children -Female sexuality -Negative, but fostered interest in and willingness to talk
Late 19th century Henry Havelock Ellis -Studies in the Psychology of Sex (7 vols) -Radical ideas for his time *Great variety in behavior *Masturbation is a common practice *Orientation as degrees *Legitimized female sexual desire
Early/Mid 20th century Alfred Kinsey -Gathered detailed histories on over 16,000 -Used statistical analysis -Some inherent design flaws
Early/Mid 20th century Masters and Johnson -Measured physiological changes in 694 people (more than 10,000 orgasms) -Revolutionized treatment for dysfunctions
1970s and 1980s The Hunt Report -Largest study since Kinsey (2000 people each asked over 1000 questions) -Very low return rate / questionable sponsor
1970s and 1980s The Redbook Survey -Over 100,000 women responded -Active and assertive picture of women -Less than 2% of readers returned survey
1970s and 1980s The Hite Reports -Bestsellers reported on over 3,000 women and 7,000 men. -Used essay questions -No hard stats / some leading questions
1990s Kinsey Institute Tested sexual knowledge, 55% failed
1990s National Health and Social Life Survey -Most comprehensive yet -Over 3,432 interviewed -Random sample, 80% return rate, trained interviewers
Some NHSLS Findings -Extramarital sex is exception, not rule -Most Americans are fairly traditional in the bedroom -Homosexuality is less prevalent than originally believed
Created by: katie.nelson8