Chapter 24 Understanding Sexuality Lesson 24 1 Understanding
- Slides: 19
Chapter 24 Understanding Sexuality Lesson 24. 1 Understanding Sexual Feelings and Behavior Lesson 24. 2 What Is Sexuality?
Lesson 24. 1 Understanding Sexual Feelings and Behavior
Warm-Up What do you know about puberty and the changes that adolescent males and females go through? Make a list of all the information you know about puberty and share it with the class. Joana Lopes/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Puberty and Sex Hormones • Gonadotropin-releasing hormone signals the pituitary gland to release follicle-stimulating hormone and luteinizing hormone • These hormones affect the testes in boys and ovaries in girls • In response, the testes release more testosterone and the ovaries release more estrogen • Testosterone triggers growth and development of the testes, penis, and other sexual characteristics • Estrogen triggers growth and development of the ovaries, breasts, and other sexual characteristics Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Changes during Puberty • Some teens experience a growth spurt and weight gain • Boys: testes and penis grow; muscles develop; voice deepens; more facial hair and body hair grows; erections begin; sexual attraction may begin • Girls: ovaries, vagina, and labia mature and grow; bodies change shape; breasts grow; menstruation occurs; sexual attraction may begin Stock. Rocket/i. Stock/thinkstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Think Further Myth or Fact? Masturbation is wrong and can cause health problems. MYTH – Fact: Masturbation is a common, normal response to sexual excitement and is a way to safely release sexual tension. Masturbation is not wrong or shameful, and it does not cause health problems such as acne or blindness. If teens are uncertain about how to respond to sexual impulses, they can talk to a doctor, nurse, parent, or other trusted adult. Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Human Sexual Response Cycle • The four phases of physical changes that occur when a person is sexually aroused – Excitement phase: increased blood flow to sensitive sex organs – Plateau phase: heart rate and blood pressure continue to rise; the penis becomes fully erect – Orgasmic phase: sexual excitement may increase and culminate in an orgasm • Orgasm: the climax of sexual excitement, marked by rhythmic muscular contractions in the sex organs and throughout the body – Resolution phase: blood pressure slows and heart rate returns to normal; less blood flows to the sex organs Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Impact of Sexual Relationships • Sexual activity can cause intense emotions that complicate teenagers’ lives in ways they are unprepared for • Sexually active teens face a risk of pregnancy, risk of sexually transmitted infections, and emotional and social challenges Petrenko Andriy/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Critical Thinking Before a couple chooses to be sexually active or enter a sexual relationship, what are some things they should do first? • Discuss their views on sex early in the relationship • Respect the other person’s decision about sex • Agree on the methods that will be used for birth control and the prevention of STIs • Share their sexual histories Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Abstinence and Sexual Pressure • Choosing abstinence allows for more individual growth and attention to schoolwork • Teens who choose abstinence may encounter pressure from friends and peers and conflicting messages about sex – In reality, it is untrue that “everyone is doing it. ” – Media often unrealistically portrays sex as a common part of teen life, involving little responsibility or risk tetmc/i. Stock/thinkstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Lesson 24. 2 What Is Sexuality?
Sexuality • The expression of a person’s gender through behavior and mature anatomy and physiology • Sexuality includes – – Biological sex Gender Sexual orientation Sexual experience and thoughts Zurijeta/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Biological Sex • A person’s sex—male or female—as determined by chromosomes • Usually obvious by observation of the external sex organs at birth • Intersex: a condition characterized by ambiguous biological sex at birth • In some cases, the external sex organs do not match the baby’s chromosomal sex Anatoly Tiplyashin/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Gender Identity and Expression • Gender refers to the characteristics a society associates with a particular biological sex • Also a legal status that is written on a birth certificate • Perception of gender is influenced by behavior and appearance • Gender identity is both assigned and chosen Sunny studio/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Critical Thinking What does it mean when a person is transgender? A transgender person strongly believes he or she is the opposite gender of that which is indicated by biological sex. What do transgender people generally do to cope in society? Some choose to change their appearance, clothing, and name to match the gender they feel they really are. A few transgender people undergo expensive reconstruction surgery to match their organs with their gender. Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Think Further Myth or Fact? People are often completely masculine or completely feminine. MYTH – Fact: It is impossible to be completely masculine or completely feminine. Most people’s behavior lies somewhere in between those two extremes. People exhibit both masculine and feminine traits, and their personalities contain aspects of both. Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Sexual Orientation • Refers to the gender to which a person is romantically and physically attracted • Heterosexual: attracted to members of the opposite sex • Homosexual: attracted to members of the same gender • Bisexual: attracted to members of both genders • LGBT: acronym that means lesbian, gay, bisexual, and transgender Syda Productions/shutterstock. com mangostock/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.
Support for LGBT Youth • Homophobia is the irrational fear, discrimination, and anger directed at homosexuality and LGBT individuals • LGBT individuals are accepted more widely today, but still face prejudice and bullying • It is important for LGBT teens to have a supportive and accepting group of people around them • Governments have passed laws to protect LGBT individuals from discrimination in the workplace, hate crimes, and to legally recognize same-sex marriage Toskana. INC/shutterstock. com Copyright Goodheart-Willcox Co. , Inc. May not be posted to a publicly accessible website.