Adolescence Age
Child born at the time called infant thereafter he reaches the child stage called life then, adolescence. The period of life when the body has its own organs are developing rapidly. That state is called adolescence. This period starts from the age of about 11 years old and lived until the age of 18 or 19 years. Than boys this age girls are already starting 1 or 2 years. So are girls early maturing than boys.
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Topic including in this article |
What is adolescence |
Signs of adolescence |
Menstruation in girls |
Sex determination |
Important secretion of hormones |
Glands |
Nutrition in adolescence |
Signs of Adolescence:
- Changes in puberty , Be increased in length begins.
- The body is starting to change shape.
- the change in tone. Boys are inside come out emerged Adams Apple and girls are sound and strong.
- the development of reproductive organs. Girls are the ovaries increase in size. Boys are looking to shave mustaches come.
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puberty is the testes - start of testosterone or male hormones. Ovaries in girls starts to be estrogen or female hormones.Start of reproductive age women are aged 10 to 12 years old and it moves generally 45 to 50 years of age
Menstruation
Eggs begin to mature at puberty. An egg matures in the ovary and is released by one of the ovaries at an interval of about 28 to 30 days. If it does not fertilize it is divided and exits the body.It is bleeding in women.Known as menstruation or menses.
Sex determination
- Sex determination is a key role of chromosomes. Men have the XX chromosome possessed while parents are XY chromosome. When you meet someone chromosome male chromosomes that is when sperm fertilization occurs then meet egg. During the infusion if you get the chromosomes of the male X chromosome parents will girl. But if I have the Y chromosome get the x chromosome parents will then child boy. Looking at the photos below you can unders
Important secretion of hormones
Our bodies are moving all actions.Lots glands of them are individually generate different hormones.Which perform different functions in our body.Let us know about some important hormones.
Glands-
1.Pituitary gland
2.Thyroid glands: -
This gland is found in our throats.It works to balance our voices.Says thyroxine hormone released from the gland.
3. Adrenal gland :-
This gland is found in the part of our stomachs.This gland makes hormones called Adrinelin.That our bodies anger, balance the anxiety and excitement.
4. pancreas :-
This hormone is also found in parts of our stomach.It generated a hormone called insulin.Which helps to digest the food in our body.It is caused by a disease called diabetes.
5. ovaries: -
it is feminine organs. The hormone is produced called It estrogen.
6. testis
Nutritional needs of teens
Our body is made up of lots of cells.Each cell has an individual basis.During adolescence, the body’s rapid growth.Body This increase is in need of a good diet.What we call a balanced diet.Balanced diet of protein, carbohydrates, incorporation required a substantial amount of fat, vitamins and minerals.Milk is a balanced diet for yourself.In the meantime we would also need physical exercise along with a good diet.So all parts of the body continue to function correctly.- NCERT Class 8th Science chapter - 6 Combustion and flame
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