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Natuurwetenskappe

Graad 9

Lewensprosesse: ‘n gesonde lewe

Module 5

Asemhaling en gesondheid

Lugbesoedeling en baie stof en rook kan mense se longe beskadig. Dit is omdat die skoonmaaksisteem van die lugweë nie meer effektief kan werk nie.

Sodra die longweefsel beskadig is, kan hulle nie meer effektief suurstof na die bloed vervoer nie en moet die hart harder werk in 'n poging om suurstof aan alle selle te voorsien. Dit lei tot gesondheidsprobleme en hartsiektes.

Rook bombardeer die sensitiewe longweefsel aanhoudend met hul partikels en die weefsel reageer na 'n tyd daarop deur meer selle te kweek as pantser teen die aanslag – dit is KANKER !

Respiratoriese siektes

Emfiseem:

  • word gevind in mense wat rook – cilia is verlam en mukus bou op
  • aanhoudende gehoes breek en beskadig bloedkapillêre
  • gaswisseling word bemoeilik – persoon lei aan tekort aan suurstof
  • dood kan intree

Bronchitis:

  • inflammasie van die bronchi en bronchioli as gevolg van bakteriese infeksie
  • baie mukus of flegma (dik slym) vorm – persoon hoes aanhoudend
  • rook vererger simptome en verleng hersteltydperk

Asma:

  • 'n allergiese reaksie op sekere stowwe wat bronchioli laat toetrek
  • persoon kry nie asem nie
  • medikasie vir die verwyding van die buisies is noodsaaklik
  • dit is uiters gevaarlik om iemand anders se asmapompie te gebruik – daar is verskillende chemiese middels in die verskillende soorte – hou by jou doktersvoorskrif!

Tuberkulose (tb):

  • word veroorsaak deur 'n bakteriese infeksie – longe word eerste geaffekteer
  • persoon hoes aanhoudend, toon gewigsverlies, verlies aan eetlus, nagsweet, is uitasem en hoes bloed op
  • dis aansteeklik, aangesien bakterieë versprei deur die fyn slympartikels wat deur siek persone uitgehoes word
  • is ten volle behandelbaar by jou naaste kliniek – persone moet net met uitgerekte behandeling aanhou!
  • 'n groot probleem op die Kaapse Vlakte en in arm gemeenskappe
  • alle babas moet ingeënt word met 'n BCG-inenting
  • VRAE OOR LONGSIEKTES:

1. Hoekom ly asmalyers aan asemhalingsnood?

2. Hoekom hoes mense met TB bloed op?

3. Hoekom is TB in arm gemeenskappe so 'n groot probleem?

4. Hoekom moet jy nie hoesonderdrukkers neem as jy bronchitis het nie?

5. Hoe verloor 'n persoon die funksie van sy cilia as hy emfiseem het?

HET JY AL OOIT GESTIK?

  • Jy stik as jy vinnig sluk of lag, praat of hoes wanneer jy sluk. Die epiglottis ('n kraakbeen dekseltjie) wat die lugpyp tydelik moet afsluit sodat kos by die slukderm moet afgaan, maak nie betyds toe nie en kos gaan in die lugpyp of trachea in.
  • 'n Persoon wat stik, probeer altyd wegbeweeg en die benoudheid wegsteek. Volg so 'n persoon en vra of hulle reg is. Indien hulle klank kan uitkry, is die stik nie so erg nie en 'n stewige hoesbui sal die kos losmaak en laat uitkom. Indien die lugpyp egter geblokkeer is, het die persoon net 4 na 5 minute voordat breinskade intree.

Doen die HEIMLICH-MANEUVER!

Staan agter die persoon – arms om sy middel.

Maak 'n vuis met een hand en bedek met ander hand – plaas net bokant naeltjie en onder ribbe.

Maak 'n opwaartse rukbeweging – herhaal.

Klein kindertjies kan oor knie geplaas word.

Demonstreer die Heimlich-metode aan jou familielede – moenie regtig druk toepas nie!

Jy kan dalk 'n lewe red. Sluit aan by jou skool se noodhulpspan en doen 'n kursus.

Klasaktiwiteit: PLAKKAAT OOR ROOK

  • Versamel waarskuwings op sigaretpakkies en in ou tydskrifte – onthou, deesdae is alle rookadvertensies verbode!
  • Vind ook uit oor die wette t.o.v. van rook – daar is baie nuwe verwikkelinge.
  • Maak 'n plakkaat wat as bewusmakingsveldtog kan funksioneer. Plak dit buite jou klas op of maak 'n uitstalling vir jou skool.

HET JY GEWEET?

  • Elke sigaret verkort jou lewe met 5,5 minute – dus 20 per dag beteken 'n verlies van ses maande vir elke ses jaar van rook.
  • 'n Sigaret bevat 4 000 verskillende chemikalieë, waaronder dodelike gifstowwe soos arseen, koolstofmonoksied, nikotien en sianied!
  • 'n Halwe gram nikotien kan 'n volwassene binne minute doodmaak!

indien jy nou ophou:

  • sal jy binne twee dae beter proe en ruik
  • jou oggendhoesie sal binne twee weke verdwyn
  • jou risiko vir hartsiektes sal binne 'n jaar halveer

die prysskok:

  • Teen sowat R20 'n pakkie 20's kos dit jou teen 'n pakkie per dag R600 per maand en R7 200 per jaar in 2009!

Assesering: PLAKKAAT

Kon jy 'n gesondheidsboodskap uitbeeld deur te beplan (1.1) en die ondersoek uit te voer (1.2)

[LU 1.1; LU 1.2]

Assessering

LU 1

Wetenskaplike Ondersoek

Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurverskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Dit is bewys as die leerder:

1.1 ondersoeke kan beplan;

1.2 ondersoek kan uitvoer en data kan versamel;

1.3 data kan evalueer en bevindinge kan kommunikeer.

Memorandum

Asemhalingsisteem en gesondheid

VRAE LONGSIEKTES:

1. longbuisies trek toe

2. bloedkapillêre breek agv hoesbuie

3. verwaarlosing, swak gesondheidstoestande, gebrekkige opvoeding, klein beknopte behuising

4. flegma moet uitgehoes word

5. te veel flegma

Questions & Answers

difference between microeconomics and macroeconomic
Ugyen Reply
what is monopoli power
Adzaho Reply
the situation that prevails when economic forces balance so that economic variables neither increase nor decrease
Bombey
what is equilibrium
Kabir
what are the important of economic to accounting students with references
salihu Reply
Economics is important because it helps people understand how a variety of factors work with and against each other to control how resources such as labor and capital get used, and how inflation, supply, demand, interest rates and other factors determine how much you pay for goods and services.
Muhammad
explain the steps taken by the government in developing rural market?
Azeem Reply
contribution of Adam smith in economics
abel Reply
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Patrick
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Hey
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AS
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Umarou
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Amir
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Amir
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AS
I love this book and i need extra Economic book
Amir
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Effah Reply
Pls, I need more explanation on price Elasticity of Supply
Isaac Reply
Is the degree to the degree of responsiveness of a change in quantity supplied of goods to a change in price
Afran
what is production
Humaira
Okay what is land mobile and land unmobile
scor
And what are the resources in land
scor
what is production
Humaira
the proces of using the services of labor and equipmnt together with other in puts to make goods and services availble
Bombey
Okay what is land mobile and land unmobile
scor
Discuss the short-term and long-term balance positions of the firm in the monopoly market?
Rabindranath Reply
hey
Soumya
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Mitiku
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Mitiku
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Soumya
through hard study and performing well than expected from you
Mitiku
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Soumya
prepare first, in psychologically as well as potentially to sacrifice what's expected from you, when I say this I mean that you have to be ready, for every thing and to accept failure as a good and you need to change them to potential for achievement of ur goals
Mitiku
parna kya hai behencho?
Soumya
Hallo
Rabindranath
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Mitiku
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Momoh
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Isaac
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Afran
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Afran
Hello
OLANIYI
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OLANIYI
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OLANIYI
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OLANIYI
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akinwale
am from Ghana
Jacob
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Charles
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Dev
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Dev
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Dev
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OLANIYI
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JOSEPH
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Lerato
okay
Umarou
okay
Umarou
hi
Humaira
hi
Liaqat
what is firms
Anteyi Reply
A firm is a business entity which engages in the production of goods and aimed at making profit.
Avuwada
What is autarky in Economics.
Avuwada
what is choice
Tia Reply
So how is the perfect competition different from others
Rev Reply
what is choice
Tia
please what type of commodity is 1.Beaf 2.Suagr 3.Bread
Alfred Reply
1
Naziru
what is the difference between short run and long run?
Ukpen Reply
It just depends on how far you would like to run!!!🤣🤣🤣
Anna
meaning? You guys need not to be playing here; if you don't know a question, leave it for he that knows.
Ukpen
pls is question from which subject or which course
Ada
Is this not economics?
Ukpen
This place is meant to be for serious educational matters n not playing ground so pls let's make it a serious place.
Docky
Is there an economics expert here?
Docky
Okay and I was being serous
Anna
The short run is a period of time in which the quantity of at least one inputs is fixed...
Anna
that is the answer that I found online and in my text book
Anna
Elacisity
salihu
Meaning of economics
Suraj Reply
It will creates rooms for an effective demands.
Chinedum Reply
different between production and supply
babsnof
Hii
Suraj
hlo
eshita
What is the economic?
Suraj
Economics is a science which study human behavior as a relationship between ends and scarce means which has an alternative use.
Mr
what is supply
babsnof
in a comparison of the stages of meiosis to the stage of mitosis, which stages are unique to meiosis and which stages have the same event in botg meiosis and mitosis
Leah Reply
My ma het umfeseem en ha voete swel baie en sy kani uriene afslaan ni wat kan dit veroorsaak
Miggie Reply

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Source:  OpenStax, Natuurwetenskappe graad 9. OpenStax CNX. Sep 15, 2009 Download for free at http://cnx.org/content/col11068/1.1
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