Reaching the Age of Adolescence

Adolescence

11 years to 19 years

Puberty is the process of physical changes by which a child's body matures into an adult body and it becomes capable of sexual reproduction to enable fertilisation.

Reproduction.

During puberty the bones of arms and legs elongate and make a person tall.

Genes

Broader shoulder and wider chests.

In boys, at puberty, there develop a larger voice box which can be seen as a protruding part of the throat called Adam’s apple.

In boys, at puberty, there develop a larger voice box which can be seen as a protruding part of the throat called Adam’s apple. Sometimes the muscles of the growing voice box go out of control and the voice becomes hoarse.

Sweat and sebaceous glands

Male: testes, female: ovaries

Hair grows under the arms and in the pubic region, development of breast.

Hormones are chemical substance secreted by endocrine gland that reaches to a particular body part via bloodstream.

Endocrine gland.

Estrogen

Testosterone

This causes changes in boys like production of sperms, growth of beard and moustaches, growth of hair on chest, under the arms and in pubic region.

This causes changes in girls like production of ova, development of breast, development of mammary gland inside the breast, growth of hair under the arms and in pubic region.

Pituitary gland.

Endocrine gland release hormones into the bloodstream in order to reach a particular site called target sites.

28 to 30.

The first menstrual cycle, or first menstrual bleeding, in female humans.

True

Menstruation

Menarche to menopause.

Inside the nucleus of cell.

X and Y chromosomes.

False

Pituitary gland, thyroid gland, adrenal gland, pancreas, ovary, and testes

Thyroxine

Insulin

Adrenalin

Insulin is produced by pancreas and adrenalin is produced by adrenal gland.

Pituitary gland

Health

Balanced diet, a balanced diet means choosing a wide variety of foods and drinks from all the food groups that is it should contain protein, carbohydrates, fats and vitamins in requisite proportions.

Insect

Thyroxine

Balanced diet and maintain physical

Because drugs are addictive, once you will take it you will feel like taking it again and again, drugs harm our body in long run by ruining health and happiness.

Chapattis, dal and vegetables

Exocrine glands are glands that secrete their products into ducts. They are the counterparts to endocrine glands, which secrete their products directly into the bloodstream.