Growth and Development Chapter 8 Growth and Development Lesson 1 Adolescence: A Time of Change Click for: >> Main Menu >> Chapter 8 Assessment Teacher’s notes are available in the notes section of this presentation. Next >>

The period between childhood and adulthood adolescence endocrine system puberty The period between childhood and adulthood A body system containing glands that regulate growth and other activities The time when you start developing the physical characteristics of adults of your gender Click to reveal the definitions.

In this lesson, you will learn to describe three kinds of changes you go through during the teen years. identify the structure and function of the endocrine system. analyze how a teen is influenced by peers.

Organizing Information Divide a sheet of paper into three columns. Name each column for one of the sides of the health triangle. Write two changes that occur on each side.

Changes During Adolescence Differences in how younger or older teens may look are caused by adolescence. Mood swings are a normal part of adolescence. adolescence The period between childhood and adulthood Although teens experience these changes, they occur at different times and speeds for everyone.

Changes During Adolescence Hormones are produced in the endocrine system. endocrine system A body system containing glands that regulate growth and other important activities

Changes During Adolescence These glands make up the endocrine system: Pituitary Thyroid Adrenal Pancreas Ovaries / Testes The pituitary gland produces several hormones that control other glands and organs. It also regulates the body’s growth and development. The thyroid gland produces a hormone that regulates the speed at which your body turns food into energy. It also helps regulate growth. The adrenal glands produce adrenaline, a hormone that controls the body’s response to emergencies. They also play a role in digestion and help maintain a balance of salt and water in the body. The pancreas produces insulin, which controls the ability of body cells to use sugar for energy. The ovaries and testes produce hormones that control sexual development.

Physical Changes Physical changes that occur during puberty include the growth of body hair and increased sweating, or perspiration. puberty The time when you start developing the physical characteristics of adults of your gender Female Changes Male Changes Increased level of female hormones Increased level of male hormones Acne Increase in perspiration Underarm hair Development of Breasts Deeper voice Increase in body fat Facial hair Wider hips Broadened shoulders Formation of mature eggs Muscle development Pubic hair Beginning of menstrual cycles Production of sperm cells Enlargement of external genitals

Mental/Emotional Changes Changes in hormones can affect your feelings as well as your thoughts. You may experience mood swings. You might be happy one moment and sad the next. These shifts in emotions are called mood swings and are common in adolescence. Talk about your feelings with others. This will help you manage your feelings in a healthy way.

Adolescence brings more responsibility. Social Changes Adolescence brings more responsibility. As your friends become more important, choose friends that will support you and influence you in a positive way. Your parents may give you more responsibility such as asking you to help care for a younger sibling or to prepare meals.

What I Learned Vocabulary Define endocrine system. Lesson 1 Review It is a body system containing glands that regulate growth and other activities.

Lesson 1 Review What I Learned Recall Name two physical changes that occur during puberty. Answer should include any of the changes listed in Figure 8.2.

Lesson 1 Review What I Learned Identify What are some social changes that occur during adolescence? Sample answers: becoming more independent, having more responsibility, spending more time with friends, and experiencing the influence of peers

Lesson 1 Review Thinking Critically Apply Peter gets teased by some of his peers because he is going through puberty. If you went to school with Peter, how would you teach these peers to respect Peter? Sample answer: These changes are normal for teens entering puberty.

Lesson 1 Review Thinking Critically Evaluate How do you think the changes you experience during puberty help you prepare for adulthood? Answers, which will vary, should show an understanding of the changes that occur during puberty.

Growth and Development End of Chapter 8 Growth and Development Lesson 1 Adolescence: A Time of Change Click for: >> Main Menu >> Chapter 8 Assessment