Which has a lower pressure the air in your lungs as you inhale or the air outside your body?
I believe that the pressure from the diaphragm causes our lungs inflate, thus we inhale and when the diaphragm deflates, it makes us exhale. -------------------------------…-------------------------------------- As your diaphragm or intercoastal muscles contract the size of the lungs increases. This creates a pressure difference between your lungs and the surrounding atmosphere. By increasing the size of the lungs you create a low pressure environment in the lungs by expanding the same amount of gas to a larger area. this pressure difference doesn't have to be much 1mmhg is more then enough, the main thing is just that you need a difference in preasure. Air flows from high preasure to low preasure, so by decreasing the preasure in the lungs air flows into the lungs. as you breath out you make the lungs smaller by relaxing the muscles and diaphragm, making the volume in the lungs decrease, thus increasing the preasure and moving the air from inside the lungs out to the surrounding atmosphere.
There is no difference of the average local air pressure inside or outside of the headphone.
When you inhale air rushes into your lungs because when you breathe in your taking in air.
This depends on exhalation or inhalation. If you are exhaling the pressure would be greater inside the lungs than the outside, but if you are inhaling, then the pressure would… be greater on the outside than the inside.
The reason for this is based on the basic gas laws that state that gases will move from an area of high concentration (or pressure) to an area of low concentration/pressure. … Another gas law (known as Boyle's law) states that as the size of the container a gas is in increases, the pressure will decrease (as the gas particles have more room to spread out) These laws can be applied to inspiration: When we inhale, the intercostal muscles between the ribs contract - this pulls the ribs upwards and outwards, increasing the size of the thoracic cavity. The diaphragm will also contract and flatten, which further increases the size of the thoracic cavity Because the volume has increased, the pressure inside the thoracic cavity will decrease, so that it is lower than the atmospheric pressure. Air (following the rule that gas moves from high pressure to low pressure) will therefore be drawn into the lungs.
When the diaphragm contracts the lungs are pulled down. This creates space in the lungs for air to rush in because air pressure is greater outside the body than inside the bod…y. So in order to reach an equilibrium the air outside rushes into the lungs when you inhale. To my little knowledge of the body,the lungs collapse on exhaling and expand on inhaling.As the brain controls everything,except the heart, the heart has cells which can think for itself.If the brain stopped functioning,the heart can still beat as long as it has oxygen in the lungs.As soon as the air is used up the heart will eventually stop.When you sleep your heart keeps the lungs inhaling and exhaling to maintain life until you awake.Then the brain goes into a rest period and just gives the heart and lungs a slight electric shock to keep them going. If Im wrong here please let me know.
By putting pressure on the lungs with the diaprhragm (a platform of muscles just below the lungs.
at higher altitudes the pressure of air is greater in our lungs as compare to the air pressure outside the body
No, in fact you breathe in hydrogen and other gasses than oxygen. I assume it just comes back out when you exhale. I'm just guessing though.
When you inhale, oxygen fills your lungs. Next the oxygen diffuses out of your lungs into your bloodstream. The diffusion of oxygen from the lungs causes less pressure in your… lungs signaling your brain that you need to inhale.
When you inahle, air rushes into your lungs because that is the only pathway air is allowed to travel. The body is designed to be air tight and water tight where it needs to b…e so that no foriegn material can do damage to the rest of the body.
Is it true you inhale because the air pressure inside the chest cavity is less than outside the body?
Partly. Your diaphragm contracts and increases the volume of your chest cavity. Air enters to fill the space. The pressure in the chest cavity is slightly lower than the atmos…phere while you are inhaling, but it is all caused by the volume increasing. When you exhale the opposite occurs. the volume of you chest cavity decreases and it pushes the air back out.. during the exhale, the pressure inside your chest is slightly higher than outside your body.