Probably it's because it keeps the lungs moist so it doesn't dry out. Also, it's because if the air & temperature outside the body is so cold it hurts/you're breathing very hard/etc, you will definitely want warm air to warm up your body as much as possible. The body needs to stay at 98.6 degrees Fahrenheit to operate at maximum efficiency. Once your body goes above or below that, it stops working very well & behaves differently & oddly. The body heats up when you're sick to try to kill the infection, but it can't survive once it reaches somewhere between 100 & 106 or 108 degrees Fahrenheit; and the same when it becomes very very intolerably cold. So cold that your body's temperature starts to drop to a very dangerously low temperature and eventually shuts down. They describe the details in Perfect Disaster: Ice Storm.
We are mostly water. Dry air removes water from our body and dehydrates us causing death.
The lungs are moist so the alveoli do not dry up and so the lungs can still function properly. The air you breath helps to keep you lungs moist. :)
The respiratory tract is moist and which enableshould the efficient of diffusion across the alveomar membrane in the blood
The respiratory tract is moist to enable efficient diffusion of oxygen across the alveolar membrane into the blood.
When air is warmed and moistened, it helps keep the respiratory membranes in the lungs moist as well. This conditions increase the efficiency of gas exchange.
So you can breathe
The exchange surfaces are moist.
The gases are to dissolve and diffuse through.
Surfactant
Amphibians are known for having moist skin, as it helps with gas exchange through their skin. Some examples include frogs, toads, and salamanders.
Gases must first dissolve in a fluid in order to diffuse across a membrane. All gas exchange systems require a moist environment.
they are connected to a densed network of blood vessels which keeps the oxygen moist
In order for gas exchange to occur in the alveoli there must remain a constant supply of hemoglobin. Oxygen binds to hemoglobin and if these surfaces were dry then there wouldn't be any hemoglobin.
alveolus (tiny air sacs arranged in clusters in the lungs, in which the exchange of oxygen and carbon dioxide takes place.)
A respiratory surface is located anywhere in an animal or human being where gas exchange occurs. A respiratory surface is located anywhere in an animal or human being where gas exchange occurs.
Amphibians use their lungs, and use their thin skin when its moist.
Gas exchange takes place at a respiratory surface-a boundary between the external environment and the interior of the organism. For unicellular organisms the respiratory surface is governed by Fick's law, which determines that respiratory surfaces must have:a large surface areaa thin permeable surfacea moist exchange surface.
Our body is made up of prokaryotic cells. These cells are not in the contact with the environment. So the process of diffussion cant make any difference in exchange of gasses between the multicellular boy and environment.