Question

mind map of science chapter 10 reaching the age of adolesence for 8th full in Oswaal. com pls​

Answer 1

Answer:

Reaching the age of Adolescence*

Explanation:

Well...

These are important keys that you can note down, buddy!

Adolescence

The period of life when the body undergoes changes leading to reproductive maturity is called adolescence. It begins around the age of 11 and lasts up to 18 or 19 years of age. Since this period covers the teens (13 to 19 years of age) adolescents are also called teenagers. In girls, adolescence may begin a year or two earlier than boys but the period of adolescence varies from person to person.

Puberty

These changes in the human body during adolescence mark the onset of puberty. The most important change which marks puberty is that boys and girls become capable of reproduction and it ends when an adolescent reaches reproductive maturity.

Changes at Puberty

Increase in Height

The sudden increase in height is one of the most noticeable changes during puberty. At this time the long bones of the arms and the legs elongate and make a person tall. Initially girls grow faster than boys but by about 18 years of age both reach their maximum height. The rate of growth in height varies in different individuals. Height depends on the genes inherited from parents. Having a well-balanced diet helps the bones, muscles and other parts of the body get adequate nourishment for growth.

Change in Body Shape

In boys, the shoulders generally broaden as a result of growth whereas in girls the region below the waist becomes wider. In boys, the muscles of the body grow more prominently than in girls.

Voice Change

At puberty, the voice box or the larynx begins to grow and because the boys develop larger voice boxes it can be seen as a protruding part of the throat called Adam’s apple. In girls, the larynx is hardly visible from the outside because of its small size. Girls generally have a high pitched voice whereas boys develop a deep voice.

Increased Activity of Sweat and Sebaceous Glands

During puberty, the secretion of sweat glands and sebaceous glands (oil glands) increases due to which many young people get acne and pimples on the face.

Development of Sex Organs

At puberty, male sex organs like the testes and penis develop completely. In girls, the ovaries enlarge, eggs begin to mature and the ovaries start releasing mature eggs.

Reaching Mental, Intellectual, and Emotional Maturity

Adolescents become more independent than before and are also self-conscious. Intellectual development takes place and they tend to spend considerable time thinking and dreaming. It is the time in one’s life when the brain has the greatest capacity for learning. Sometimes an adolescent may feel insecure while trying to adjust to the changes in the body and mind. But these changes are a natural part of growing up.

U can check the link out:

https://leverageedu.com/blog/class-8-reaching-the-age-of-adolescence/