Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy. In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle, blood, skin, hair, breasts, and sex organs. Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult body has been developed. Before puberty, the external sex organs, known as primary sexual characteristics, are sex characteristics that distinguish boys and girls. Puberty leads to sexual dimorphism through the development of the secondary sex characteristics, which further distinguish the sexes.
The human body undergoes several changes during adolescence. The age at which the sex hormones and sex gametes begin to be produced and a boy or a girl becomes sexually mature to reproduce is called puberty. Generally, boys attain puberty at the age of 13 to 14 years, while girls reach puberty at a comparatively lower age of 10 to 12 years. On attaining puberty-
In case of a male child, testes start producing male gametes called sperms and also start producing a sex hormone called testosterone.
In case of a female child, ovaries start producing female gametes called ova (or eggs) and also start producing sex hormones called oestrogen and progesterone.
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Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a girl, the testes in a boy. In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle, blood, skin, hair, breasts, and sex organs. Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult body has been developed. Before puberty, the external sex organs, known as primary sexual characteristics, are sex characteristics that distinguish boys and girls. Puberty leads to sexual dimorphism through the development of the secondary sex characteristics, which further distinguish the sexes.
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[tex] \bf Puberty [/tex]
The human body undergoes several changes during adolescence. The age at which the sex hormones and sex gametes begin to be produced and a boy or a girl becomes sexually mature to reproduce is called puberty. Generally, boys attain puberty at the age of 13 to 14 years, while girls reach puberty at a comparatively lower age of 10 to 12 years. On attaining puberty-
In case of a male child, testes start producing male gametes called sperms and also start producing a sex hormone called testosterone.
In case of a female child, ovaries start producing female gametes called ova (or eggs) and also start producing sex hormones called oestrogen and progesterone.