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43 Cards in this Set

  • Front
  • Back

Health

A state of complete physical, mental and social well being and free from diseases or infirmity

Non communicable/non infectious diseases

are not caught from another indivdual




>degenerative


(organs and tissues work less well)


>nutritional deficiency


>allergy


>environmental
>inherited


>Psychological/mental


>self induced

Asthma

Causes


allergens, anxiety, exercise, possible genetic links




Symptoms


coughing, wheezing, shortness of breath




Treatment


>steroids


used to reduce inflammation of the bronchial tube


>noradrenaline type drugs


dilute the bronchial tubes which enable more air to get in and out of the lungs


>avoid allergens



Affect of asthma on the respiratory tract

During an asthma attack the bronchi and bronchioles become narrower as the muscles in them contract




The lining also becomes inflamed and more mucus is produced



Obesity

Causes


consuming more energy than using in daily activities




Symptoms


overweight, difficulty exercising




Treatment


Restricted diet, frequent exercise



Coronary heart disease

Cause


a blockage in one or more arteries in the heart


most common case of blockage is atherosclerosis(process by which fatty material is deposited on the lining of the arteries)




Symptoms


Pain in chest while exercising(angina)




Treatment


heart bypass, balloon inflation, artificial pacemaker



Hypertension(high blood pressure)

Causes


a salt rich diet, physical inactivity, alcohol and tobacco use




Symptoms


>an enlarged or weakened heart


>abnormal bulge in the wall of an artery(aneurism)




treatment


salt restriction


moderation of alcohol/tobacco consumption



Diabetes mellitus juvenile onset(type 1)

cause


no insulin is secreted by the pancreas




symptoms


tiredness, lack of energy, breath smells of acetone




treatment


injections of insulin





Diabetes mellitus mature onset(type 2)

cause


cells do not respond to insulin




symptoms


often associated with diabetes




treatment


carefully controlled diet



Communicable/infectious diseases

Can be passsed from one person to another


caused by pathogens




Can be classified according to transmission of pathogen

Influenza(Acute respiratory infection)

pathogen


virus




sread


droplet infection




signs


shivering, raised body temperature




symptoms


headache, fever, sore throat




control


flu vaccine, good ventilation




treatment


rest, warmth, hot drinks, pain killers

Pneumonia (Acute respiratory infection)

Pathogen


bacterium-pneumococcus




spread


spores in droplet infection




Signs


coughing, sputum is red




symptoms


Fever, chest pain




control


avoid overcrowding




treatment


antibiotics

Tuberculosis



Pathogen


Bacterium-mycobacterium




spread


spores in droplet infection




Signs


coughing, spitting blood




symptoms


fever, sufferers become thin and pale




Control


avoid overcrowding, BCG vaccine




treatment


antibiotics



Cholera

pathogen


Bacterium-vibrio




spread


contaminated water, particularly by faeces




signs


vomiting, severe diarrhea




symptoms


gastroenteritis




Control


proper disposal of faeces


chlorination of drinking water




treatment


antibiotics


Typhoid

Pathogen


bacterium-salmonella




spread


contaminated water and food




signs


severe diarrhea, fever, rash




symptoms


gastroenteritis




control


proper treatment of both water and food, vaccination




treatment


antibiotics

Ringworm

Pathogen


fungus-tinea




Spread


spores on flores, towels, skin




signs


red patches on body




symptoms


itching




treatment


fungicide ointments

Gonorrhoea(STI)

causitive agent


bacterium




Signs


yellowish discharge from urethra, pain while urinating




control


keep to one sexual partner


use a condom during sex




treatment


antibiotics

Genital herpes(STI)

causitive agent


virus




Signs


itching followed by a rash


blisters may appear




Control


avoid contact with a known sufferer




treatment


no complete cure





Syphilis(STI)

Causitive agent


bacterium




Signs


painful ulcers




Control


keep to one sexual partner




Treatment


only effective antibiotic is penincillin

HIV/AIDS(STI)

Cause


virus




Symptoms


persistent coughing, swollen lymph glands, diarrhea, weakness, secondary/opportunistic infections




Transmission


blood transfusion


mother to foetus


sexual intercourse




Prevention


fewer sexual partners


reduce needle sharing


condomise




treatment


antiretroviral (work against an rna containing virus) drugs help to slow the progression of HIV to AIDs

Vectors

an organism that carries the pathogen and transmits it from one host to another

Malaria

Pathogen


plasmodium-attacks and multiplies in liver and blood cells




Vector


female anopheles mosquito




Signs


high fever




treatment


quinine, mepacrine

dengue fever

Pathogen


Virus




Vector


aedes aegypti




Signs


severe headaches, pain in muscles and joints, rash


haemorrhagic form causes vomiting and bleeding




Treatment


rest, plenty of fluids



Control of dengue and malaria

>spraying breeding grounds of mosquitoes


>draining breeding grounds


>using insecticides


>mosquito nets



Gastroenteritis

Causes


infection by food and water bourne pathogens


typoid, cholera


irritation of the alimentary canal




Signs


inflammation of intestines, stomach pain and nausea



Control of gastroenteritis

removing/reducing flies


>sewage should be removed and treated


>rubbish should be placed in plastic bags and sealed


>food should be covered



Leptospirosis

Pathogen


bacterium




Vector


rats and domestic animals- they urinate and the bacteria gets into water and may be drunk/enter the body through cuts






Symptoms


fever, aching muscles, nausea, vomiting, kidney failure




Treatment


antibiotics




Control


strict rodent control


vaccination of domestic animals


education about the disease

Sterilization

any process that eliminates (removes) or kills (deactivates) all forms of life and other biological agents

Pasteurization

process of heating the milk at a temperature of 60 degrees or 72 degrees 3 to 4 times. Here alternative heating and cooling kills all the microbes and molds without boiling the milk.

Boiling

done for metallic devices like surgical scissors, scalpels, needles etc like instruments. Here substances are boiled to sterilize them.

Autoclaving

material can be heated under high pressure for 15 minutes




It is the most common method used as it is powerful enough even to kill bacterial spores.

Disinfectants

chemical agents that destroy pathogens on contact e.g chlorine used to make water sake for drinking




are used on non-living things






antiseptics

a substance that can be applied to living tissue to kill/reduce the growth of pathogens

Antibiotics

are medications used to treat – and, in some cases, prevent – bacterial infections

Antigen

Any substance that stimulates the lymphocytes to produce antibodies

Antibody

A protein produced by lymphocytes in response to an antigen

Anti-toxin

an antibody that counteracts a toxin.

immunity

the body's resistance to disease

Vaccine

A preparation of antigens for one or more diseases that is given by mouth/injection to stimulate active immunity and protect against the disease/s




children are vaccinated against:


MMR-mumps, measles, rubella


hepatitis A


polio

Natural passive immunity

antibodies obtained from


>across placenta before birth


>from colostrum in breast milk

Natural active immunity

Anti body produced in response to a person being infected

Artificial active immunity

Antibody produced in response to a vaccine


person acquires immunity by being given a weaker strain or dead disease causing microorganism and the bodies produces its own antibodies

Artificial passive immunity

Injection in the form of a serum containing the antibody from a different person/animal