<< Chapter < Page Chapter >> Page >

Geography

Grade 5

Health and well-being

Module 32

Illness and disease

We all become ill at times. When this happens, we visit the local doctor and/or take the right medication and wait for a speedy recovery. An ordinary illness can often have far-reaching consequences for people who live far from essential medical services. Sometimes people cannot even afford to buy the necessary medicines because they simply don’t have the money.

A. WHY DO WE FALL ILL?

There are germs all around us. We come into contact with them every day but we don’t necessarily become ill from the germs we inhale or ingest, because a healthy body has a natural defence system that protects one from becoming ill. The body’s immune system identifies any foreign cells and simply attacks and destroys the unwelcome visitors. Sometimes, however, a germ may succeed in slipping past the lines of defence and that is when we become ill. The body’s immune system carries on fighting against the intruder, and most often the body succeeds in getting well on its own, but there are times when we need medication to help the body recover. Specific medicines have been produced to kill specific “germs”. A patient often also takes medicine to strengthen the body again after an illness.

Activity 1:

To gain information on medicines from various sources

[lo 1.1]

  • Talk to your parents, doctor and/or local pharmacist to find out the name of one kind of medicine that can be used when a patient is experiencing the symptoms listed in the table below. Write the name of the medicine in the column “Possible medication”.
Symptoms P ossible medication
1 Severe headache
2 Diarrhoea
3 Dry cough
4 Stomach cramps
5 Allergic reaction to bee sting

There are different kinds of “germs” that attack the body, such as viruses, parasites and fungi that penetrate and invade the body from the outside. In other cases the attackers come from within the body itself, for example cancer cells.

“Germs” that attack the body from outside can penetrate the body in various ways. Some viruses and fungi are present in the air, and are simply inhaled. Others, for example parasites, live in drinking water and are transmitted to humans by insects such as mosquitoes, flies and blowflies. Sometimes there are germs on the objects we touch, and these germs can find their way into our mouths when we eat or touch our lips. Certain viruses, such as the HI virus, enter the body through contact with blood or during sexual intercourse.

B. CURABLE AND INCURABLE DISEASES

Most diseases with which we come into contact almost every day are curable. Some are more persistent and it takes longer to recover from them than from others. There are also some diseases that are so virulent that they just cannot be wiped out. For instance, despite all the research that has been done and the intense treatments that are available, some kinds of cancer still cannot be cured. In such cases treatment and medication are merely aimed at increasing the patient’s life expectancy and can do no more than ease the symptoms.

The HI virus that causes Aids is a very nasty virus. At this stage it is still too clever for the body’s defence mechanism.

Assessment

LO 1

GEOGRAPHICAL ENQUIRY

The learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.

We know this when the learner:

1.1 with guidance, selects and uses sources of useful geographical information [finds sources];

1.2 distinguishes between facts and opinions [works with sources];

1.3 categorises information [works with sources];

1.4 uses an index to find places on global atlas maps [works with sources];

1.6 identifies and explores possible solutions to problems [answers the question];

1.7 demonstrates knowledge and under-standing of the issue through projects, discussion, debate and charts [communicates the answer].

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
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Social sciences: geography grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10986/1.2
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Social sciences: geography grade 5' conversation and receive update notifications?

Ask