puberty & adoloscence

7/24/2019 Puberty & Adoloscence

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Puberty &

Adoloscence


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Puberty or AdolescenceThis is the period during which children

becomes sexually mature.

In girls it begins at an average of 10 years

In boys it begins at an average of 1 years


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!ere are some changes that happen to both boys andgirls"

underarm hair grows

pubic hair growsbody smell gets stronger.

emotional changes

growth rate increases


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!ere are some changes that happen only to boys"

voice brea#s $gets deeper%

testes and penis get bigger

testes start to produce spermcells

shoulders get widerhair grows on face and chest.


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!ere are some changes that happen only to girls"

breasts develop

ovaries start to release eggcells $periods start%

hips get wider.


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&ale 'eproductive

(ystemThe male reproductive system is

designed for the transferring spermto the female reproductive system.


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)unction of the &ale

'eproductive (ystemPenis * the male reproductive organ

It has two functions "

1. Carrying urine to the outside ofthe body.

2. Delivering sperm into the

female vagina.

.The act of placing the sperm into

the vagina is called sexual


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Parts of the &ale

'eproductive (ystem

Testes + Produces sperm

(crotum + holds the testes

,pididymis - (eminal esicle + (tores sperm

/rethra* carries both urine and sperm in thepenis


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A(


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)emale 'eproductive

(ystemThe female reproductive system

protects the fertilised ovum duringgestation as it grows.


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)unction of the

)emale 'eproductive (ystemIt acts as a passage for the monthly

ow of blood out of the female body

called menstruation.

It receives the sperm deposited by

the male penis.

It serves as a pathway for the birth

of a baby.


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Parts of the

)emale 'eproductive (ystemagina + also called the birth canal. It is a 10

cm long muscular tube which connects thewomb and the outside world.

!ymen + thin layer of s#in formed at theoutside end of the vagina which is usually

bro#en during the rst intercourse.

/terus + also called the womb. It protects andnourishes the fertili2ed ovum as it develops

into a baby.


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Parts of the

)emale 'eproductive (ystem3varies + a pair of internal organs which

contains the developing eggs and releasesone egg each month.

)allopian tube $oviducts% + a funnel shapedopening which catches the egg once it is

released from the uterus.

4ervix + A ring of muscle that closes the

lower part of the womb.


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5ho am I6I produce sperms and are stored in the

scrotum. 5ho am I6

I am responsible for storing sperm. 5hoam I6

I am responsible for carrying both urineand sperm to the penis. 5ho am i6


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5ho am I6I am responsible for carrying urine to

the outside of the human body and

for placing sperm into the vagina.5ho am I6


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5hy is the male reproductive systemimportant6

5hy is the female reproductive systemimportant6


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5ho am I6I am responsible for protecting and

nourishing the fertili2ed ovum as it

develops into a baby. 5ho am I6

I catches the egg once it is released

from the ovary . 5ho am I6

I am 10 cm in length and connects

the womb and the outside world. 5ho


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I contain developing eggs and releasesone egg each month. 5ho am I6


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The Two &onthly 'eproductive 4ycle infemale

&enstruation * The monthlydischarge of the lining of

the womb.

3vulation + The monthly releaseof an unfertili2ed.


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&enstrual 4ycle


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&enstruation&enstruation and 3vulationbegins during puberty.

&enstruation could begins as

early as 7 years old in girls butit could be delayed until age 18or 19 years.


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&enstruation

&enstruation occurs in a cycleranging from : + ;0 days< but the

average length is = days. The rstmenstrual cycle is called &enarche

&enstruation last for : + 8 days inmost females.


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&enstruationThe = day cycle goesthrough several stages "

>ay 1*8

?lood ows from the vagina

as the uterus lining brea#sdown. This is menstruation.


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&enstruation

>ay 8 + 1:

+The lining of the uterus wallthic#ens in readiness to receivean egg from the ovary.

>ay 1:3vulation occurs $ an unfertili2edegg is released from the ovaries%


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&enstruation

>ay 18 + =

After ovulation< the lining ofthe uterus gets very thic#.


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&enstruation

>ay =

If fertili2ation does not occuriaphragmA rubber cap which is placed in

the vagina< over the woman@scervix to prevent sperm form

entering the uterus.


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Intra uterine device $I/>%A small loop or coil of plastic

which is placed inside the uterusby a doctor or a nurse. This

prevents a fertilised egg fromimplanting in the uterus.


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4ontraceptive pillsThese are tablets containing the

female hormones. The hormones

prevents ovulation from ta#ing place.

3ne pills is ta#en each day for three

wee#s and stopped for one wee#

during which menstruation ows


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(terili2ation5hen a couple decides that

they do not want to haveanymore children< either the man

or the woman acn be sterilised


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(terili2ationA man may have his sperm ducts cut

and tied o this is called

vasectomy.

A woman may have her fallopian

tubes cut and tied< this is called

tubal ligation.


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