Reaching the Age of Adolescene

Reaching the Age of Adolescene 

Adolescene
The period of life, when the body undergoes changes , leading to reproductive maturity, is called adolescene. 
Period - age of 11 to age of 19.
Also called "teen age". Because this period covers the teen ages i.e, 13 to 19 
Adolescene may begin earlier in girls than boys. 

Puberty
Period during adolescene, when human body undergoes several changes, is called puberty. 
Important change- Boys and girls become capable of reproduction. 

Changes at puberty 
Increase in height 
Change in body shape 
Change in voice 
Increased activity of sweat and sebaceous glands 
Development of sex organs 
Reaching mental, intellectual and emotional maturity

Changes in Girls 
Increase in height
Region below the waist becomes wider 
Less growth of muscles 
Voice becomes high pitched. 
Increased activity of sweat and sebaceous glands
Ovaries enlarge. 
Eggs begin to mature. 
Reaching mental, intellectual and emotional maturity

Changes in boys 
Increase in height
Boys get broader shoulder and wider chest 
Muscles grow more prominently
Voice becomes low pitched 
Increased activity of sweat and sebaceous glands
Testes and penis develop completely
Testes begin to produce sperm. 
Reaching mental, intellectual and emotional maturity

Secondary sexual characters
The characters that distinguish male from female is called secondary sexual characters. 
These are controlled by hormones. 

Reproductive phase 
In female - Puberty to age of 50years 
In male - Puberty to Death. 

Menstruation
Shedding off of released egg, thickened lining of uterus and blood vessels, is called menstruation. 
It occurs once in about 28-30 days. 

Menarche
First menstrual flow at puberty. 

Menopause
Stoppage of menstruation. 



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