2. Human And development HEALTH SEVEN.pptx

HEALTH 7

1. Human And development Chap 1: growth and development

2. What is adolescence Adolescence is the period between childhood and adulthood. During the stage, physical growth is one of the prominent changes. Children grow fast, and their bodies change. During adolescence your mental, emotional, and social life also undergo transformation. Puberty refers to the period during which changes occur to the reproductive system. Puberty varies from person to person but usually begins between the ages of 12 and 18.

3. Stages of growth & development Infancy - during the first two years of life, or the stage of infancy, a child displays tremendous growth. Childhood - is the stage of growth and development between infancy and adolescence. During this stage children develop the ability to reason and solve problems. Early childhood ranges from ages 1 to 3. At this stage, children walk well, pick up objects without losing balance, draw pictures that are recognizable, and may wish to help other adults . Middle childhood is from ages 4 to 6 . Children in middle childhood can dress and undress themselves. These children become more talkative and outgoing, and day may want to do things to their way but respect other people's belongings. Late childhood is from 7 to 12 years of age. During this stage school becomes a vital part of a child's life.

4. Stages of growth & development Adolescence - this stage follows childhood. You have already learned some things about adolescence. Adulthood - after adolescence between the ages of 18 and 21, a person reaches adulthood. By this time the body's organs have fully developed, and the body's performance is at its peak.

5. physical CHANGES DURING PUBERTY Hormones- chemical substances that help regulate many of its functions of your body Testerone - male produce hormone Estrogen/ Progesterone - female produce hormone.

6. Sex characteristics Primary Sex Characteristics- refer to the production of male and female reproductive cells, or gametes in males are called sperm . Once a male reaches puberty, each day millions pf sperm cells are produced in a testes , a male reproductive organ. Sperm production continues throughout adulthood. F emale gametes are called egg cells or ova . These are produced by the ovaries , which are female reproductive organs. At birth, the body of a female already contains all the eggs she will ever produce. These eggs do not mature until puberty begins with the onset of ovulation . In this process one of the two ovary releases a ripened egg about once month. The onset of sperm production for males or ovulation for female tells you that you have become sexually mature and are already able to reproduce

7. Sex characteristics Secondary sex characteristics- are physical attributes that developed during puberty but are not directly involved in reproduction. The secondary sex characteristics for females: Developed or enlarged breasts; Narrow waist line; Widened hips; Increased body fat; Menstruation (the monthly cycle during which an ovary releases a mature egg )

8. Sex characteristics The secondary sex characteristics evident in males: deepened voice; Facial hair; Developed muscles; Broadened shoulders B oth males and females include: Body hair in the armpit and genital area; Increased perspiration; Complete permanent teeth

9. MENTAL AND EMOTIONAL CHANGES PUBERTY At six years old, a child's brain is about 95% of the size it will be when a child becomes an adult. During adolescence, the cerebrum which is the largest part of the brain continues to develop. This brain development increases memory as well as the ability to reason and come up with the solution. Emotional change is also prominent in the adolescent years. You might start to look outward and try to understand yourself and your role in society.

10. Social CHANGES in PUBERTY You also experience of social changes during adolescence. Your friends become a big part of your social life. As you attend classes and extracurricular activities, you meet friends with the same interest as well as people from various cultural and social backgrounds. You may also experience of peer pressure, were in your peers challenge your sense of right and wrong. For example, your peer may ask you to try a puff of cigarette, yet you know that smoking is dangerous to your health. This is not time for you to practice your decision-making skills especially when an issue is against your own personal values. Strong friendships begin when you realize that you share similar goals values and experiences with other.