B2 keeping healthy

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  • Created by: Clarky100
  • Created on: 19-11-15 21:03
what happens when the body denfense are broken?
microbes wil get into yuor body, microbes will mulitply, microbes will damage and destroy cells
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how do white blood cells kill pathogens?
They engulf the pathogen and destroy it, they release toxins to destroy it and thye can release antibodies whic cause the pathogen to clump together so they will easily be engulfed by the other white cells eg. B cells
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What are antibodies?
They bind to the part of the pathogen called the antigen
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what does vaccination cause you to have?
A primary immune responce with out getting really ill
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what don't all people get vacinnated?
Religious reasons, poor countries may not be avle to afford them, not all people have to be vaccinated.
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what are antibiotics?
they are a drug which destroy bacteria and some fungi, they destory the cell wall of bacteria
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how do we test if antibiotics have worked?
there is a petri dish with agar and a lawn of bacteria, the antibiotics are soaked discs placed on the agar and then you incubate them for 24-48 hours
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what does antiboitic resistant mean (give example of one)?
it means the antibiotics have been used too much and not correctly eg. MRSA
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where do medicines come from?
a lot of our medicines come from plants
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how are the medicines made?
You isolate a drug, next you do animal testing, then they go to hospital for clinical testing
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name 3 clinical testings?
open trial, blind trail and double blood trail
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what are the advantage of a open lable test?
no ethical dilema, the patient knows wheater they are being treated or not (the placebo)
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what are the disadvantage of a open lable test?
the placebo effect which makes them feel better mentally and physically but nothing to do with the active ingredients of the drug.
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what aere the advantages of an blind trial test?
There is no placebo effect, if the patient feels better due to the drug.
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what are the disadvantage of a blind trial test?
Ethical dilemma, thinks their being treated but are not.
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what are the advantages of a double blind test?
the doctor cannot tell the patient accidentally.
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what are the disadvantages of a double blind test?
Patients thinks they are being treated but not may not be but the doctor and patient doesn't know if the drug is treating the illness.
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what are the 3 main parts of the heart?
The arteries, The vain and the capillaries.
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what is coronary heart disease?
Its when the coronary arteries are blocked, the heart muscle will stop pumping and will eventually die.
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what is are the coronary arteries?
They carry the blood to the heart muscles.
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how is coronary heart disease caused?
When you eat to much fat, and if you don't do exercise.
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what is high cholestrol?
Cholesterol is carried in your blood by proteins, and when the two combine they're called lipoproteins.
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what is systolic readings?
its the top reading of the blood pressure and itr measures the pressure on teh blood as the ventricals contract to push the blood around the body.
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what are the diastolic readings?
Its the bottom readings of the blood pressure and it measures the pressure on the blood when the heart is relaxed.
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what increases blood pressure at rest?
Lack of excersie, stress, genetic,nicotine in the bloodstream and the build up of plaque in the artery caused by high cholestrol.
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what is homeostasis?
keeping the conditions the same in the body
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whatr are the four caterogies to do with homeostasis?
stimulus, decector, effector and consequences
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what is the decector to do with heat?
thermo receptor
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whcih two thuings have an effect on homeostasis?
Alchole, ectasey
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Other cards in this set

Card 2

Front

how do white blood cells kill pathogens?

Back

They engulf the pathogen and destroy it, they release toxins to destroy it and thye can release antibodies whic cause the pathogen to clump together so they will easily be engulfed by the other white cells eg. B cells

Card 3

Front

What are antibodies?

Back

Preview of the front of card 3

Card 4

Front

what does vaccination cause you to have?

Back

Preview of the front of card 4

Card 5

Front

what don't all people get vacinnated?

Back

Preview of the front of card 5
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