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 body. 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.
When you take a breath, the volume in the lung increases, and the pressure decreases.
No, it decreases. Your diaphragm pulls down towards your stomach and intestines making the space in your thoracic cavity (chest) greater thereby decreasing the pressure.
it enters the boby
I use it to breath by changing the volume of my chest.
The volume is halved
the volume doubles
the volume doubles
Volume decrease.
The pressure will increase.
Volume increases
The volume increases.
It would be half of the original volume. As you reduce the volume the pressure would increase and at half the original volume the pressure would be doubled.
the pressure and the temperature increases, and the volume is reduced.
The pressure will increase if the volume remains the same.
volume increases