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carbon dioxide being removed from the body

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carbon dioxide being removed from the body

Postby AMIE » Fri Apr 28, 2006 3:38 pm

Hi everyone,

Please excuse my ignorance, carbon dioxide is removed from the body...
starting with it diffusing into the lungs...what is the pathway and process of the body removing it?
incorporating,,,,diagragm, intercostal muscles, ventilation homeostatic control, chemoreceptors effectors ph ect, medulla oblongata

I know all these are involved but in what order??? could someone help me please i dont know where to start!

thank you very much in advance
AMIE
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Postby Khaiy » Fri Apr 28, 2006 4:43 pm

Well, the diaphragm controls whether or not the lungs contract or expand, which expels and draws in air respectively. Chemoreceptors gauge how much CO2 there is in the lungs (the urge you get to breathe while holding your breath comes from the buildup of CO2 in the lungs, that's how the body measures the need to breathe). When CO2 builds up in the blood stream (although it's in the form of bicarbonate there), it becomes more acidic, but your body likes to be at homeostasis, and will cause you to breathe faster in order to get rid of the excess carbon dioxide. These signals are processed in the brain, possibly the medula oblongata but I'm not sure.

I'm not really sure what information you want, because your list includes an etc. at the end, and once CO2 is inside of the lungs it's a one step process to remove it, the lungs contract and expel gases held inside of them. If I haven't answered your question, could you be more specific about what you'd like to know?
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Hi

Postby AMIE » Fri Apr 28, 2006 5:21 pm

Thank you for your reply,
ok to be specific i have an assignment to do and this is the question

CO is toxic and must be removed from the body. Discuss in detail how
2
this happens.

Thing is, i have some of the information via internet and textbooks but i just dont know where to start and what follows in which order?

Do i begin with carbon dioxide diffusing into the lungs or the chemoreceptors detecting the levels of co2 ( it is the medulla oblongata) .

Surely the structure and movement of the diagragm in expiration would be the last point as that expels the co2.

I have to talk about the dynamics of ventilation and homeostatic control within this too.

So i guess my question is How would i structure this essay? Im confused !

any help would be greatly appreciated

thank you all
AMIE
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