HUMAN GROWTH AND DEVELOPMENT

PUBERTY              

Puberty is the transitional biological stage between childhood and adulthood. It is the stage when the body matures.Puberty involves changes in primary seual characteristics. It starts when the pituitary gland at the base of the brain produces hormones.Hormones are chemical substances,which control the body’s development and growth.At pub.

 

Rty,these hormones are secreted to the reproductive organs,thatis,the testes and the ovariesin females and males respectively.The reproductive organs thereafter produce  sex hormones,which causes the changes in the adolescent’s body.

 

Adolescence begins  withpuberty.Most girls  reach puberty between the ages of 9-13 while boys reach puberty between the age of 12-14.However , children grow at different rates so some may mature laters than others.

 

DIFFERENCES BETWEEN MALES AND FEMALES AT PUBERTY

1.Boys:there is a rapid increase in Height.Boys later caught up with Girlsin height and may overcome them.

Girls:there is a rapid increase in Height.Girls tend to be taller thanboys of the same age.

2 .Boys:voice becomes deeper

Girls:Breast develops

  1. Boys :semens discharges during sleep.

Girls:Menstruation begins

4.Boys: Hairs are noticed under the harmpits and on the external parts of the Reproductive organs.

Girls:Hairs are noticed under the armpits and on the external parts of the Reproductive organs.

5.Boys:The shoulder become broader

Girls:the hip become broader

6.Boys:pimples  sometimes appear on the face but  they usually disappear after a time.

Girls: pimples  sometimes appear on the face but  they usually disappear after a time.

 

EVALUATION

Describe the changes that takes place in boys and girls during puberty.

 

See also

TEMPORARY AND PERMANENT CHANGES

Definition of growth and development

MAN AS AN INTELLIGENT ANIMAL

RELATIONSHIPS BETWEEN LIVING THINGS IN THEIR HABITAT

Adaptations

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