Question

What physical changes can b seen in boys and girls during puberty?
Class 10 cbse
Plz help and write detailed ans

Answer 1

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➧ Puberty➫ The stage of life when the body becomes capable of reproduction.

♦ It is the time in life when a boy or girl becomes sexually mature.

♦ Boys usually start Puberty 2 years later than girls.

♦ Both girls & boys can expect to gain weight as well as height during Puberty. 

➧ Adolescence➫ The period of transition from a child to an adult.

♦ It is a period of life with specific health & developmental needs & rights.

♦ It describes the years between ages 13 and 19 & can be considered the transitional stage from childhood to adulthood.

➧ Some changes in Boys & Girls:-

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[1] In Boys:-

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❱ The male hormone testosterone beings to be released by the testes. 

❱ This cause the sex organs -- testes & the penis -- to develop completely & the testes to start producing sperm.

[2] In Girls:-

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❱ The ovaries start producing the female hormone Progesterone.

❱ The ovaries enlarge & start releasing eggs.

➧ Some changes 0ccurs during Puberty & Adolescence:-

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❶❫ Increase in height:-

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❱ Increase in height during adolescence brought about by elongation of the bones of the arms & legs.

❷❫ Changes in Body Shapes:-

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❱ In boys:- The shoulder become broader and the chest become wider.

❱ In Girls:- The pelvic region widen, hip broaden, breast develop & increase in size. Mammary gland developed inside the breast.

❸❫ Development of Hairs:-

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❱ Hair start growing in the Armpits and in the public area.

❹❫ Changes in Voice:-

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❱ Larynx becomes bigger in boys than in girls. This is why boys develop a deep voice where girls have a high pitched voice.

❺❫ Increase of Sweat Glands:-

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❱ Sweat gland leads to increase sweet and obtain resulting in body odour.

The skin becomes oily & lead to appearance of acne & pimples on the face.

❻❫ Sexual Feelings:-

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❱ Sexual maturity causes boys & girls to become interested in & attracted to the opposite sex.

Answer 2

In males :- deeping of voice.

growing moustache and beard.

growing hairs under arm and public area.

elongation of penis .

In girls :- mensuration cycle start.

darkening around nipples on their breast.

their breast size grows.

voice get high pitch.

hairs grow under arms and public area.