chapter 5 human growth

7/24/2019 Chapter 5 Human Growth

http://slidepdf.com/reader/full/chapter-5-human-growth 1/18



Learning Outcomes:

• describe what growth is,

• identify the characteristics used to measure

growth rate,

• analyse the growth curve for male and

female,

• compare and contrast the growth rate in

male and female,

• describe the effects of nutrition on the

growth in children.



uman growth

• !rocess of change in si"e,

appearance and function in an

organism



Changesduring growth

in humans

#i"e

#i"e increases frominfancy to adulthood

$ppearance

$ppearance of aperson changes as

he%she grow

#piritual

development

#piritual changes

occur at different

stages of growth

Cell function

&ach cell withdifferent structures

performs a specific

function



Growth curve in humans

• 'nfancy

(apid growth

• Childhood

#lower but steady growth

• $dolescence

(apid growth during puberty

• $dulthood

Growth lessens and stops• Old age

)egative growth



Comparison between males * females



Comparison

• 'nfancy

Growth rate for a male + female

• Childhood

Growth rate of male female

• &arly $dolescentGrowth rate of female male

• Later $dolescent

Growth rate of male female-emale starts * ends adolescence earlier

ale starts * ends his adolescence later



)utrient 'mportance

!roteins /uild new cells *tissues

Carbohydrate * -ats !rovide energy

Calcium, !hosphorus* 0itamin 1

/uilding teeth * bones

'ron /uilding red blood cell

0itamins -ight infections



2eight gain boy vs girl

Childhood $dolescence

$dulthood

'nfancy



• $part from body weight, height can be used to measure

the rate of human growth.• #tate the period of the most rapid human development.

34 years

• $t which growth stage is the rate of increase in body

weight6a7 in boys and girls almost the same8

349 years

6b7 faster in boys than in girls8

943 years and ; years and above

6c7 faster in girls than in boys8

34; years



5. 1iscussion activity

. 6!roteins, Carbohydrates7 are needed to supply

more energy to children.. 6-ats, Proteins7 are needed to build new tissues

in the body.

>. <he formation of strong bone and teeth needs6calcium, iodine7.

;. Consuming too much food will lead to 6obesity,

anaemia7.

5. 1e?ciency of protein in children will cause

6ric@ets, kwashiorkor 7.



Childhood

$dolescence

$dulthood

'nfancy

1iagram



6a7 <he growth rate in females is same as that

in males at infancy stage.6b7 <he growth rate in females is faster than in

males at adolescence stage.

6c7 <he growth rate in males is faster thanfemales at childhood stage.

6d7 <he rate of growth is the fastest at the

infancy stage.6e7 <he rate of growth in adolescents is faster

than that in children.



Childhood

$dolescence

$dulthood

'nfancy



6b7 $t which stage does a human being grow

the fastest8

K/Infancy

6c7 $t which stage does a human being grow

the slowest8

N/Adulthood

6d7 $t which stage does a female grow faster

than a male8

M/Adolescence



6b7 2hat is the best food for humans at stage !8

otherAs mil@

6c7 $t which stage does a human reach puberty8(%$dolescence

6d7 &Bplain why children need carbohydrates in large =uantities.

Children are very active

!: 'nfancy : Childhood (: $dolescence #: $dulthood

chapter 5 human growth

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