What should be done to maintain reproductive health?


Following measures can help the young people to maintain their reproductive health.

(a) Balanced Diet : A balanced diet is very important for a growing body. Diet should contain all the necessary elements in required proportion. Elements like carbohydrates, proteins, fats and vitamins should be integral part of a balanced diet. 

(b) Personal Hygiene : One shouldmaintain hygiene. All parts of the body should be washed properly so that no infections can take place .

(c) Physical Exercise : Daily routine of physical exercise keeps the body fit and maintains the circulation of blood. Therefore one should practice exercise regularly. 

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Larynx is called

  • Voice box

  • Music box

  • Respiratory organ

  • None of the above


A.

Voice box

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Give function of the following :

(a) Thyroxine
(b) Insulin
(c) Adrenalin
(d) Growth hormone
(e) Testosterone


(a) Thyroxin controls metamorphosis in insects.

(b) Insulin—regulates blood sugar.

(c) Adrenalin—increases heart rate and supply of blood to various organs.

(d) Growth hormone—regulates growth and development.

(e) Testosterone—controls the secondary sexual charaters in male. 

 

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What changes occur in body during puberty?


Various changes occur in the body of human during puberty. These changes occur due to hormones secreted by reproductive organs. These changes are the following :

(a) increase in height : During puberty there is sudden increase in height. 

(b) Change in body shape. The body shape changes during puberty. Boys develop broader shoulders whereas in the girls the region below the waist becomes wider.

(c) Hyperactive sebaceous and sweat glands- Puberty increases the secretions from sweat and oil glands. May also cause pimples and acnes in some young people.

(d) Change in Voice : The voice box enlarges. Deeping of voice takes place in boys while girls voice becomes high pitched. 

(e) Development of Sex Organs : The reproductive organs of boys and girls become mature. Testes start producing sperms and ovaries release matured eggs.

(f) Mental and Emotional Maturity : Young people become more mature mentally, emotionally and intellectually.

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(i) Draw a diagram to show the position of various endocrine glands. Label pituitary gland, thyroid gland, adrenal gland, pancreas, ovary and testes.

(ii) Name the hormones released by ovary and testes.

(iii) Out of ovary and testes which produces egg and which produces sperm.


(i)


(i) (ii) Ovary produces estrogen and testes produces testosteron

(ii) Ovary produces estrogen and testes produces testosterone hormone.

(iii) Egg is produced by ovary and sperm is produced by testes.

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