Lung Diseases

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  • Created by: Voltace
  • Created on: 18-05-14 19:48
What is the formula for working out pulmonary ventillation? & how is triangle positioned?
Tidal Volume x Ventillation Rate
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How do you work out percentage increase? & Percentage of something?
Difference/Original x 100 .. What you got / Number you want to work out percentage of?
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What is asmtha, and how does it occur?
Bronchoconstriction - 1. Allergens trigger inflammatory response, releases histamines which constrict smooth circular muscles of bronchiloes. Epithelial cells secrete mucus. Contriscts air flow, reduces tidal volume. O gradient reduced so dif lower.
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How does Pulmonary Tuberculosis occur?
Transmitted ->aersol droplets, engulfed by phagocytes and encased in epithelial cells, forms tubercles , stimulate inflammatory response , forms scar tissue,reduces rate of diffsuion, bacteria dorment , emerge and reproduce , kills and dmgs less s/a
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How does emphysema occur?
Foreign particles, such as tar in smoke get stuck in alveoli, causes imflamation , attracts phyagocytes, they release protease, digest elastin, reduces tidal volume/rate of diffusion / cant expand and recoil / less diffusion o2 / severe alveoli merge
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How does Fibrosis occur?
formation of scar tissue, by foreign particles, walls thicker less elastic, smaller s/a for diffusion, bigger diffusion pathway, ventillation rate increases and heavier due to less efficent diffusion.
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Card 2

Front

How do you work out percentage increase? & Percentage of something?

Back

Difference/Original x 100 .. What you got / Number you want to work out percentage of?

Card 3

Front

What is asmtha, and how does it occur?

Back

Preview of the front of card 3

Card 4

Front

How does Pulmonary Tuberculosis occur?

Back

Preview of the front of card 4

Card 5

Front

How does emphysema occur?

Back

Preview of the front of card 5
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