Chapter 10 Reaching The Age of Adolescence

  • Adolescence is the period of life where many changes takes place in the body to reproductive maturity.
  • The most apparent change during the puberty is sudden increase in height, voice change, change in body shape, development of sex organ etc.
  • In females. One egg is released by either of the ovary during each month. After that, the uterus develops a thick lining to the support of foetus to prepare for possible pregnancy. If fertilization does not take place, this results in bleeding through vagina for some days which is known as menstruation.
  • The thread like structure called chromosomes.
  • The male hormone is known as testosterone and female hormone is known as estrogen.
  • The production of these hormones are under the control of another hormone that is secreted from the endocrine gland called pituitary gland.
  • Endocrine gland secretes hormones which are poured into the blood stream directly.
  • The protruding part of the throat which can be easily seen in boys are called as Adam’s apple.
  • The period of time when body undergoes several changes along with reproductive maturity is known as adolescence.
  • Adrenaline hormone is secreted by adrenal gland which helps the body to control the stress.
  • A meal that include proteins, carbohydrates, fats and vitamins in appropriate amount and is known as balanced diet.
  • Endocrine glands are ductless glands.
  • Pancreas secreted insulin which help to lower the blood sugar level.
  • Voice box is called as larynx.
  • Pituitary gland is also known as master gland of the body.
  • The physical, mental and social well- being of a person and the healthy reproductive organs with normal functions, is called as reproductive health.

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Exercise 1 ( Page No. : 126 )