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Aardrykskunde

Graad 5

Gesondheid en welsyn

Module 32

Siektes

Almal word van tyd tot tyd siek. Dan besoek ons die plaaslike geneesheer en/of drink die regte medikasie en wag op ‘n spoedige herstel. Vir mense wat ver van die nodige mediese dienste af woon, kan ‘n eenvoudige siekte dikwels verreikende gevolge hê. Medisyne is soms baie duur, wat ook veroorsaak dat nie alle mense dit kan bekostig nie.

A. HOEKOM WORD ONS SIEK?

Kieme is oral in die lug rondom ons. Ons asem daagliks baie daarvan in. Ons word egter nie noodwendig van alle kieme siek nie, omdat gesonde liggame ‘n natuurlike verdedigingstelsel het wat ons daarteen beskerm. Die liggaam se immuunstelsel identifiseer enige vreemde selle en val eenvoudig die onwelkome besoekers aan en vernietig dit. Soms slaag ‘n kiem egter daarin om verby die verdediging te glip en dan word ons siek. Die liggaam se immuunstelsel gaan voort om teen die indringer te baklei en soms slaag die liggaam self daarin om gesond te word, maar ander kere het ons medisyne nodig om die liggaam te help genees. Spesifieke medisyne is gemaak om spesifieke “kieme” dood te maak. Dikwels neem ‘n pasiënt ook medisyne om die liggaam weer sterk te maak na ‘n siekte.

AKTIWITEIT

OM INLIGTING OOR MEDISYNE UIT VERSKEIE BRONNE IN TE WIN

[LU 1.1]

Gesels met jou ouers, huisdokter en/of plaaslike apteker en verskaf die naam van een soort medisyne wat gebruik kan word wanneer ‘n pasiënt die volgende simptome ervaar:

Simptome Moontlike medikasie
Erge hoofpyn
Diarree
Droë hoes
Maagkrampe
Allergiese reaksie na bysteek

Daar is verskillende soorte “kieme” wat die liggaam aanval. Onder hulle is virusse, parasiete en swamme wat die liggaam van buite af binnedring en aanval. In ander gevalle kom die indringers van binne die liggaam self, soos kankerselle.

“Kieme” wat die liggaam van buite aanval, kan die liggaam op verskeie maniere binnedring. Party virusse en swamme is in die lug en word ingeasem. Ander, soos parasiete, woon in drinkwater of word deur insekte soos muskiete, vlieë en brommers aan die mens oorgedra. Soms is daar kieme aan voorwerpe waaraan ons vat en dan lek ons dalk ons vingers af . Sekere virusse soos die MIV-virus kom die liggaam binne deur kontak met bloed van iemand wat die siekte het of wanneer jy geslagsgemeenskap het met so ‘n persoon.

B. GENEESLIKE/ONGENEESLIKE SIEKTES

Die meeste siektes waarmee ons van dag tot dag gekonfronteer word, is geneesbaar. Sommige is meer hardnekkig en neem langer om te genees as ander. Daar is egter siektes wat so sterk is dat hulle nie doodgemaak kan word nie. Ten spyte van baie navorsing en intense behandelings is party soorte kanker ongeneeslik. In sulke gevalle is behandeling en medikasie slegs daarop gemik om die pasiënt se lewensverwagting te verhoog en om die simptome te verlig.

Die MIV-virus, wat vigs veroorsaak, is nog ‘n kalant wat te slim is vir ons liggaam se verdedigingstelsel.

Assessering

LU 1

AARDRYKSKUNDIGE ONDERSOEK

Die leerder is in staat om ondersoekvaardighede te gebruik om aardrykskundige en omgewingsbegrippe en prosesse te ondersoek.

Dit is duidelik wanneer die leerder:

bronne met nuttige aardrykskundige inligting kan kies en gebruik [vind bronne];

inligting kategoriseer [werk met bronne];

1.6 moontlike oplossings vir probleme identifiseer en ondersoek [beantwoord die vraag];

1.7 deur projekte, bespreking, debat en diagramme, kennis en begrip van die vraagstuk toon [dra die antwoord oor].

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Sosiale wetenskappe: aardrykskunde graad 5. OpenStax CNX. Sep 22, 2009 Download for free at http://cnx.org/content/col10985/1.2
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