Biology 12 discussion

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mrpaudel

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yeah..it was easy..!! did well..but did some silly mistakes..so think wil get around 32..!
 
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ideggkr

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histephenson007 said:
charming said:
sakibfaiyaz said:
What should have been the answer to the question about emphysema? I gave 1 and 3
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u gave two answers for one mcq?
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I chose the same ^^
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well

Emphysema both decreases surface area and increases diffusion pathway
so it should've been 1,2,3

---- from a medical website
Symptoms of emphysema:
- Abnormal dilation of air spaces with destruction of alveolar walls
- Inflammation and scarring, reducing size of lumen of airways and reducing lung elasticity
- Hypersecretion of mucus, again reducing lumen size and increasing distances for gas diffusion
 
Talha

Talha

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dude r u sure it was 1 2 3.. i wrote also dis but many ppl sayin it was 1 nd 3 ..
 
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ideggkr

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Talha said:
dude r u sure it was 1 2 3.. i wrote also dis but many ppl sayin it was 1 nd 3 ..
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Yes obviously due to broken elastin,

alveoli are unable to expand and recoil properly.

If you imagine alveoli expanding less, they would be more distant away from capillaries surrounding them.
 
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