LUNGS and AIR

[kandarp shah]

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

[sdekivit]

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

[kandarp shah]

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

[cardiorrhexis]

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...

[Dr.Stein]

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

[Doc44]

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

Doc44

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.

[cardiorrhexis]

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).

[Doc44]

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.

Doc44

Aim high, gravity may suddenly increase.

[mith]

It's covered in my hs bio book, but it would require some knowledge of physics/chemistry to understand partial pressures

[Doc44]

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.

Doc44

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

[Amrik]

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

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