Download Hahn11e_ppt_ch12

Chapter Twelve:
Understanding
Sexuality
© 2013 McGraw-Hill Higher Education. All rights reserved.
Biological Bases of Human
Sexuality
• Genetic basis
– XX = female
– XY = male
• Gonadal basis
• Structural development
– Male genital development
– Female genital development
• Biological sexuality and the childhood years
• Puberty
– Females: Menarche
– Males
© 2013 McGraw-Hill Higher Education. All rights reserved.
Growth and Development of
Sexuality
© 2013 McGraw-Hill Higher Education. All rights reserved.
Psychosocial Bases of Human Sexuality
• Psychosocial sexuality: Masculine and
feminine aspects of sexuality
• Gender: Biological basis of sexuality
• Gender identity: Recognition of one’s
gender
• Gender preference: Emotional and
intellectual acceptance of one’s own
gender
© 2013 McGraw-Hill Higher Education. All rights reserved.
Psychosocial Bases of Human Sexuality
• Gender adoption: The long
process of learning the behavior
that is traditional for one’s
gender
• Gender identification:
Achievement of a personally
satisfying interpretation of one’s
masculinity or femininity
© 2013 McGraw-Hill Higher Education. All rights reserved.
Male Reproductive System
• Testes
– Sperm development
– Interstitial cell-stimulating hormone
– Follicle-stimulating hormone
•
•
•
•
•
•
Scrotum
Ducts
Seminal vesicles
Prostate gland
Cowper’s glands
Penis
© 2013 McGraw-Hill Higher Education. All rights reserved.
Male Reproductive System
© 2013 McGraw-Hill Higher Education. All rights reserved.
Male Reproductive System
• Age-related hormone changes
• Male menopause (andropause)
– Decrease in level of androgens
– Prostate size increases
© 2013 McGraw-Hill Higher Education. All rights reserved.
Female Reproductive System
•
•
•
•
•
•
•
•
Mons pubis
Labia majora and labia minora
Clitoris
Vestibule
Vagina
Uterus
Fallopian tubes
Ovaries
© 2013 McGraw-Hill Higher Education. All rights reserved.
Female Reproductive System
© 2013 McGraw-Hill Higher Education. All rights reserved.
Menstrual Cycle
• Menstrual phase
– 1/4 – 1/2 cup of blood and tissue is
sloughed off during a 5-7 day period
• Preovulation phase
– Lasts about a week
– Release of FSH and LH leading to
ovulation around day 14
• Post-ovulation phase
– Build-up of endometrial tissue
– Role of progesterone
© 2013 McGraw-Hill Higher Education. All rights reserved.
Menstrual Cycle
© 2013 McGraw-Hill Higher Education. All rights reserved.
Related Conditions
• Premenstrual syndrome (PMS)
– Physical and psychological symptoms that occur in
the days just before menstruation
• Premenstrual dysphoric disorder (PMDD)
– Severe form of PMS
• Fibrocystic breast condition
– Excessive secretory activity producing swollen,
firm, or hardened tender breast tissue
• Amenorrhea
– Absence of menstruation
• Menopause
– Gradual decline in reproductive system function,
usually by late 40s to mid 50s
© 2013 McGraw-Hill Higher Education. All rights reserved.
The Human Sexual Response
Pattern
• Excitement stage – arousal stage
• Plateau stage – leveling off of arousal
immediately before climax
• Orgasmic stage – neuromuscular tension
is released
• Resolution stage – return of the body to a
preexcitement stage
© 2013 McGraw-Hill Higher Education. All rights reserved.
Sexual
Response
Pattern
© 2013 McGraw-Hill Higher Education. All rights reserved.
Sexual
Response
Pattern
© 2013 McGraw-Hill Higher Education. All rights reserved.
Differences Between Men and Women
in the Sexual Response Pattern
• Men are not
multiorgasmic
• Men reach orgasm
quicker during
coitus
© 2013 McGraw-Hill Higher Education. All rights reserved.
• Women are
multiorgasmic
• Women reach
orgasm as quickly
as men during
masturbation
Patterns of Sexual Behavior
• Celibacy
– Self-imposed avoidance of sexual intimacy
• Masturbation
– Self-stimulation of the genitals
• Fantasy and erotic dreams
• Shared touching
• Genital contact
© 2013 McGraw-Hill Higher Education. All rights reserved.
Patterns of Sexual Behavior
• Oral-genital stimulation
– Fellatio (oral stimulation of a male’s
genitalia)
– Cunnilingus (oral stimulation of a female’s
genitalia)
• Intercourse
– Penile penetration of vagina
– Associated with procreation
• Anal sex
– Performed by both heterosexual couples and
gay men
© 2013 McGraw-Hill Higher Education. All rights reserved.
Aging and Sexuality
• Sexual activity does decline with age but a
significant population of older adults remain
sexually active
• Changes in women:
– Vaginal lubrication decreases
– Reduction in orgasmic contractions
• Changes in men:
– Erection process is prolonged
– Decrease in contractions at orgasm
– Ejaculation decreases in force and volume
© 2013 McGraw-Hill Higher Education. All rights reserved.
Bonds Between People
• Love
– Emotional attachment of various levels
• Intimacy
– Sharing of deep feelings
© 2013 McGraw-Hill Higher Education. All rights reserved.
Relationships and Lifestyles
Singlehood
Cohabitation
Gay and Lesbian Partnerships
Same-Sex Marriage
Single parenthood
Marriage
Divorce
Half of all marriages end in divorce
Unrealistic expectations
© 2013 McGraw-Hill Higher Education. All rights reserved.
Chapter Twelve:
Understanding Sexuality
© 2013 McGraw-Hill Higher Education. All rights reserved.