What is puberty? and when it occurs
Answers
Answer:
Puberty is the time in life when a boy or girl becomes sexually mature.
Explanation:
It is a process that usually happens between ages 10 and 14 for girls and ages 12 and 16 for boys. It causes physical changes, and affects boys and girls differently. In girls: The first sign of puberty is usually breast development.
Puberty usually starts some time between age 7 and 13 in girls and 9 and 15 in guys. Some people start puberty a bit earlier or later, though. Each person is a little different, so everyone starts and goes through puberty on his or her body's own schedule.
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Puberty is the period during which immature reproductive system of boys and girls matures and becomes capable of reproducing. At age 10 girls, first sign is the enlargement of breast. In boys at 11 years, the enlargement of testes is the first sign.
The ovaries of a young girl start functioning around the age of 10-14 years. It starts releasing the oval (ovulation) and this stage in her life is known as Puberty.
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Roles of hormones in Puberty
The hormone called Oestrogen, are responsible for bringing the changes in the body of boys and girls, such as growth of mammary glands, widening of hip bones (in girls), increase in size of uterus. These developments are referred as secondary sexual characters. While another hormone secreted by the corpus Luteum, Progesterone prepares the uterus for receiving the embryo.
In boys, puberty takes place around the age of 11-15 years of age. The testes start producing testosterone, resulting in the development in the development of secondary sexual characters like deepening of voice, growth of hair in chest, chin and upper lip.