1. Unit 12: Intimate Relationships and Human Sexuality

2. Characteristics of intimate relationships
Love, sex and commitment
Mutual trust and affection
Realistic expectations: we’re not all perfect!
Open communication
Mutual respect
Egalitarian roles
They balance activities that they enjoy doing together and with others
Agreement on religious and ethical values

3. Intimate Relationships and Health: Marriage
Married people are generally healthier than non-married
Why?
Selection theory: healthy/happy people are the ones who seem more attractive to others and are more likely to get married
Protection theory: married couples share responsibilities, exchange love/support

4. Love More than just sex or that ‘high’ you feel when they are around
Real love is based on caring and commitment
“falling in love” is sometimes a ‘trick’, not necessarily real love
“the will to extend one’s self for the purpose of nurturing one’s own or another’s spiritual growth” (Peck 1978)

5. Sexual Anatomy! Warning: there are real pictures of human genitalia on the following slides

6. Male Anatomy The testes -produce sperm and testosterone
Scrotum - encloses and protects the testes
Epididymis – stores sperm
Vas deferens - connects the epididymis with the urethra
Urethra – transports both semen and urine

7. Male Reproductive Anatomy

8. The Penis! Composed of three masses of erectile tissue
When the spaces in the erectile tissue fill with blood = erection!
The end of the penis is the glans penis (7) which is a very sensitive part
The border of the glans penis is the even more sensitive corona
On the posterior side of the penis, there is a small triangular indentation on the corona called the frenulum (6)
the frenulum is the most sensitive part of the male penis!
T&M 27.10

9. The Penis!
The size of a man’s flaccid penis has no correlation with the size of his erect penis
Urethral opening

10. Does Size Matter?
Average male penis length varies between 5-6 inches erect
The first 5th of the female vagina has the most nerve endings
The size of the penis can ‘shrink’ due to cold temperature or nervousness
Survey of 52,031 heterosexuals found that 85% of women were satisfied with their partner’s penis size, only 55% of males were satisfied with their length

11. Reproductive Female anatomy Keywords
Egg/ ovum – meets sperm
Ovaries
produce estrogen
produce egg; released during ovulation
Fallopian tube – site of fertilization
Uterus – where the implanted fetus grows
Vagina – passageway for penis, child

12. Female Reproductive Anatomy

13. Vulva The Vulva is the term for the female external genitalia
Consists of the:
Mons pubis – pubic region covered by hair
Labia (minora/majora) – inner and outer flaps of skin that cover the vagina
Clitoris – pleasure center!!!

14. Labias come in all shapes, sizes and colours!

15. The Clitoris!
The visible clitoris is a small cylindrical mass of erectile tissue
It has approx 8000 nerve endings
It is covered externally by the prepuce of the clitoris (hood).
The part of the clitoris you can see is the glans clitoris, however, believe it or not, most of the clitoris is internal!
It is the only organ in the human body
whose ONLY purpose is pleasure!
(and it’s ours!!! Ha!)

16. When ruptured, bleeding may results
Hymen
A fold of mucous membrane that partially covers the vaginal opening until ruptured.
When ruptured, bleeding may results

17. The “G-spot”!! It is widely accepted to be present in some females
However, evidence is not definitive
Women who reported g-spot orgasms tended to have thicker vaginal walls
The location varies among females (if it’s there at all). It is in the general area of the anterior wall of the vagina
May be the region responsible for female ejaculation

18. The G-spot

19. The Human Sexual Response

20. The Stages of the sexual response
Masters and Johnson (1966) were the first to propose the four stages of the sexual response
1. Excitement
2. Plateau
3. Orgasm
4. Resolution

21. The male sexual response

22. The female sexual response

23. Female vs. Male sexual response
Males, unlike females, experience a refractory period following the response, during which another orgasm cannot be achieved.
Females have a prolonged orgasm
The female resolution stage may be longer
The female is able to have multiple orgasms!
Men are generally aroused more easily
A female may not have an orgasm with intercourse alone. It is more often than not the case that she also requires stimulation of the clitoris to achieve orgasm

24. Variations in sexual behaviour

25. Acceptable Variations in sexual behaviour
Masturbation
Oral sex
Anal sex
Homosexuality
Approx 4% males, 2% females homosexual
Commercial sex?
(from a health perspective it’s acceptable, but it’s still debateable)
Pornography
prostitution

26. Unacceptable Variations in Sexual Behaviour
Rape
Any sexual activity involving children
Forced prostitution