LUNGS and AIR

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kandarp shah
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LUNGS and AIR

Post by kandarp shah » Fri Feb 24, 2006 7:21 am

hey, all
we are doing a project in my human anatomy and physiology calss on lungs. i nedd to explain the following stuff visually on poster bord.
HOW DOES AIT AIR GET FROM YOUR LUNGS TO THE REST OF THE BODY?
EXPALIN HOW IT IS CARREID IN THE BLOODSTREAM.
WHAT CARREIS IT?
WHAT CAN HAPPEN IF YOU DON'T HAVE ENOUGH OF THIS CAREER?
WHAT ELEMETSN HELP

pl give me anywebsites which explains and how do i get the picture of this process?

thnaks a lot

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Post by sdekivit » Fri Feb 24, 2006 10:31 pm

this will be described in every physiology book you can probably find ;) do some own investigations in the world of physiology ;)

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kandarp shah
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Post by kandarp shah » Sat Feb 25, 2006 5:17 am

ya....but how do i get the pictures because the writing is strickly not allowed on the poster bord i need to explain everything by images and related pictures.
thanks

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cardiorrhexis
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Post by cardiorrhexis » Sat Feb 25, 2006 5:41 am

http://www.google.com

Hit "images" then type in your search.



HOW DOES AIT AIR GET FROM YOUR LUNGS TO THE REST OF THE BODY?
When the blood leaves the right ventricle, it travels through the pulmonary artery, to the alveoli of the lungs. CO2 is exchanged for O2 in the alveoli, the oxygenated blood returns to the heart via the pulmonary veins...it travels through the left side of the heart then to the body.

EXPALIN HOW IT IS CARREID IN THE BLOODSTREAM.
Oxygenated blood leaves the heart through the aorta, branches off into arteries and arterioles...then when it hits cappilaries, gas exchange occurs....CO2 is picked up and returned to the heart for oxygenation via the venous sytem.

WHAT CARREIS IT?
RBC's...more importantly hemoglobin within the RBC's.

WHAT CAN HAPPEN IF YOU DON'T HAVE ENOUGH OF THIS CAREER?
Hypoxia and all the badness thay goes with hypoxia...

WHAT ELEMETSN HELP
Ventilation, Cardiac Performance, Hemostasis/Blood Pressure to name a few...

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Dr.Stein
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Post by Dr.Stein » Sat Feb 25, 2006 7:12 am

cardiorrhexis wrote:WHAT CARREIS IT?
RBC's...more importantly hemoglobin within the RBC's.

RBC's membrane plays a role in immune system to bind some antigen then bring it to spleen and liver to undergo degradation 8)
Image

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Post by Doc44 » Sat Feb 25, 2006 2:03 pm

To get a complete understanding of gas exchange and tansportation you should read more on:

Partial pressures of oxygen (PO2) and carbondioxide (PCO2) in arterial blood, veinatious blood, intra and intercellular fluid and alveoli.

Disolved O2 and CO2

carbaminohemoglobin and oxyhemiglobin and their relationship to the heme and globin molecules of RBCs

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There are no simple answers to complex questions.....other than, "I don't know." and remember....It is a smart man that knows what he doesn't know.

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cardiorrhexis
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Post by cardiorrhexis » Sat Feb 25, 2006 3:38 pm

Doc...with all due respect...

kandarp shah is a highschool student... I think in-depth V/Q may be beyond the scope of comprehension...(or even desire to learn at this point).

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Post by Doc44 » Sat Feb 25, 2006 3:57 pm

I try to never under estimate one's learning and reasoning abilities. Who knows what one may see if you simply crack the door open and light a candle.

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Aim high, gravity may suddenly increase.

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mith
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Post by mith » Sat Feb 25, 2006 6:07 pm

It's covered in my hs bio book, but it would require some knowledge of physics/chemistry to understand partial pressures
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
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Post by Doc44 » Sat Feb 25, 2006 6:47 pm

Basic idea:

The gas goes from an area of higher pressure to an area of lower pressure when these two areas are separated by a membrane which will allow the gas to pass through it.

When there is a higher pressure of oxygen (PO2) in the capillary than there is in the tissue immediately around the capillary, oxygen goes out of the blood and into the tissue.

Same thing in the lungs (alveoli) and capillaries only normally there is a higher pressure of oxygen in the alveoli than there is in the capillary so the oxygen goes into the blood in the capillary.

Exchange of gasses (O2 and CO2) only takes place when the blood is in a capillary. That's because the capillary "wall" is thin enough to allow gas and other stuff to pass through and the "walls" of arteries and veins including arterioles and venules are not.

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Science is pretty simple....some scientists make it appear complex.

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Amrik
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Post by Amrik » Sun Feb 26, 2006 8:36 am

Dr.Stein wrote:
cardiorrhexis wrote:WHAT CARREIS IT?
RBC's...more importantly hemoglobin within the RBC's.

RBC's membrane plays a role in immune system to bind some antigen then bring it to spleen and liver to undergo degradation 8)


I never knew abt this. Thx Doc. I have learnt many new things frm this website and its nice hehe..

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