2. Adolescence is period of
biological significance. This
is a period of rapid change
from childhood to
adulthood.
3. Adolescence period ranges from
11 to 19 years. This is a period
from the onset of puberty to the
completion of physical growth.
4. In each individual, the adolescence
begins with physical changes.
Development of brain, rapid
increase in height and weight and
increased efficiency of glands are
significant features of this period.
5. Physical changes of adolescence
In boys In girls
Fast growth Fast growth
Growth of sex organs gains
momentum
Growth of sex organs gains
momentum
Hair grows in various body
parts( Pubic region, armpits,
face, chest)
Hair grows in the pubic region
and the armpits.
Pitch of the voice deepens Pitch of the voice become sharp
Shoulder bones expand Hip bones widen
Ejaculation starts Menstruation starts.
