cigarette smoking and how it affects your lungs biologically.

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psood1234
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hi I'm having trouble with my question which is - describe the biological consequences of cigarette smoking on the human lungs
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Reality Check
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(Original post by psood1234)
hi I'm having trouble with my question which is - describe the biological consequences of cigarette smoking on the human lungs
What do you have so far - we can help you extend your learning, but only if we know how far you've got on your own.
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psood1234
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(Original post by Reality Check)
What do you have so far - we can help you extend your learning, but only if we know how far you've got on your own.
so far i have-

Firstly if someone smokes deposits build up inside the bronchioles until it is distributed throughout the entire lungs.. Secondly smoking can damage the alveoli leading to a smaller surface area resulting in fewer alveoli.

its a 5 mark question and this is what i have so far ,
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Reality Check
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(Original post by psood1234)
so far i have-

Firstly if someone smokes deposits build up inside the bronchioles until it is distributed throughout the entire lungs.. Secondly smoking can damage the alveoli leading to a smaller surface area resulting in fewer alveoli.

its a 5 mark question and this is what i have so far ,
Just to remind you, please quote anyone you want to reply using the @ sign and their username, otherwise we don't know you've replied to us

Yes, this is a good start - the tar in cigarette smoke gets deposited in the lungs. What about the effects on the body of nicotine? How does that affect the cardiovascular system? And what about other compounds in cigarette smoke which can cause disease? What's the classic disease caused by smoking?
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psood1234
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(Original post by Reality Check)
Just to remind you, please quote anyone you want to reply using the @ sign and their username, otherwise we don't know you've replied to us

Yes, this is a good start - the tar in cigarette smoke gets deposited in the lungs. What about the effects on the body of nicotine? How does that affect the cardiovascular system? And what about other compounds in cigarette smoke which can cause disease? What's the classic disease caused by smoking?
Reality Check a classic disease would be Lung Cancer ,COPD ??
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Blue_Cow
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(Original post by psood1234)
Reality Check a classic disease would be Lung Cancer ,COPD ??
Both are good examples. COPD especially because I find (from my brief time as a "tutor" at my old school) no one really mentioned it.
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Reality Check
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(Original post by psood1234)
Reality Check a classic disease would be Lung Cancer ,COPD ??
Excellent - yes.

So, you've got the tar in cigarette smoke being deposited in the lungs. The tar contains carcinogens (substances which cause cancer) increasing the risk of lung cancer AND throat/mouth cancer (don't forget these cancers too). You've also got COPD, but you need preferably to be able to explain the mechanism for this. What about smoking causes COPD? Can you think of a similar lung disease which is prevalent in smokers - beginning with B?

You now need to think about the effects of nicotine on the body. You're pretty much at 5 marks
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psood1234
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(Original post by Reality Check)
Excellent - yes.

So, you've got the tar in cigarette smoke being deposited in the lungs. The tar contains carcinogens (substances which cause cancer) increasing the risk of lung cancer AND throat/mouth cancer (don't forget these cancers too). You've also got COPD, but you need preferably to be able to explain the mechanism for this. What about smoking causes COPD? Can you think of a similar lung disease which is prevalent in smokers - beginning with B?

You now need to think about the effects of nicotine on the body. You're pretty much at 5 marks
Reality Check Bronchitis?? and thank you for your help
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psood1234
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(Original post by Blue_Cow)
Both are good examples. COPD especially because I find (from my brief time as a "tutor" at my old school) no one really mentioned it.
@blue_cow thank you
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Reality Check
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(Original post by psood1234)
Reality Check Bronchitis?? and thank you for your help
Bronchitis - exactly. And bronchitis can become chronic in smokers, where continual damage is done which overtakes the repair process.

So, you've got:

Lung diseases directly attributable to smoking: COPD, chronic bronchitis.
Massive increase in risk of lung, throat and mouth cancer (and increased risk of other cancers too)
Plus (and I'll fill this in for you here) cardiovascular effects from the nicotine:

Nicotine is a powerful stimulant, and has effects on the sympathetic NS, including:

Increased blood pressure - can lead to hypertension. This is because nicotine acts as a potent vasoconstrictor, increasing TPR and thus blood pressure.

Increased heart rate.

For real extension work, you could also look at the effects of smoking on cholesterol levels (particularly 'bad' LDL cholesterol) and how that links with the more direct cardiovascular effects I've mentioned earlier.
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DrLuciferStrange
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(Original post by Reality Check)
Just to remind you, please quote anyone you want to reply using the @ sign and their username, otherwise we don't know you've replied to us

Yes, this is a good start - the tar in cigarette smoke gets deposited in the lungs. What about the effects on the body of nicotine? How does that affect the cardiovascular system? And what about other compounds in cigarette smoke which can cause disease? What's the classic disease caused by smoking?
damn man you really are an amazing tutor I wish I could hire you πŸ˜‚πŸ˜‚
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