"Puberty" The Origin of Man PPT Courseware 4

Description

"Puberty" The Origin of Man PPT Courseware 4

learning target:

Master the basic concepts of adolescence

Identify the characteristics of pubertal physical development of boys and girls

Describe the characteristics of cognitive development in adolescence

Describe the characteristics of psychosocial development in adolescence

1. Basic concepts of adolescence

Puberty (adolescence, puberty) is the transitional stage from childhood to adulthood. Its age range is about 10 to 20 years old. 10 to 15 years old is the stage of rapid development, and then gradually slows down. The pubertal development of girls is 2~ earlier than that of boys. 3 years.

Girls: 11~12 to 17~18

Boys: 13~15 to 19~20

Prepuberty: Physical growth spurt.

Middle adolescence: the period of sexual development, when sexual organs and secondary sexual characteristics develop rapidly.

Late adolescence: the gonads are basically mature, secondary sexual characteristics develop like adults, the epiphyses tend to be completely fused, and physical development gradually stops.

Each term lasts 2 to 4 years

2. Physical development

(1) Endocrine changes

1. Endocrine system

Composition: Including the composition of endocrine glands and endocrine tissues in certain organs of the human body.

Endocrine organ: hypothalamus

pituitary

Endocrine organs (gonads, thyroid)

Regulation: feedback regulation mechanism: hypothalamus-pituitary-gonadal axis

2. Hormones: Trace amounts of special chemicals in body fluids

important endocrine hormone

growth hormone (GH)

Testosterone

Estrogen

progesterone

3. Cognitive development

Piaget’s theory of development:

The fourth stage of adolescence: the formal operational period

Characteristics: Have learned abstract thinking and have the ability to hypothesize and deduct. Not only can they have the ability to reason and think about specific things, but they can also think about some abstract things, such as some phenomena, theories, etc.

Several characteristics of self-awareness:

The development of a sense of maturity and independence;

differentiation of self;

The intensity and depth of self-awareness continues to increase;

Self-evaluation gradually matures.

Social cognition: refers to a person who is no longer self-centered and can understand other people's thoughts and learn to accept and appreciate other people's perspectives.

General characteristics of pubertal development stages

Physical growth accelerates and a second growth spurt occurs.

Each internal organ increases in size and matures in function.

The endocrine system is active and the secretion of hormones related to growth and development increases significantly.

The development of the reproductive system suddenly accelerates, and reproductive functions are already available in late adolescence.

Secondary sexual characteristics develop rapidly, making the morphological differences between men and women more obvious.

Along with the development of form and function, there are also drastic psychological and behavioral changes, which are prone to mental health problems.

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Update Time: 2024-09-06

This template belongs to biology courseware People's Education Press seventh grade biology book volume 2 industry PPT template

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