There are no muscles in the lungs that help inhale or exhale, this is the job of the diaphragm.
when you inhale does air flow into the lungs causing the lungs to expand or does the expanding of the lungs causes air to flow into the lungs
the diaphragm
because the lungs can not re-inflate themselves
Action of the diaphragm causes healthy lungs to inflate in whole like a balloon.Doctors have said that the average person does not breath properly, thereby not filling our lungs with sufficient air to help purify our blood. We should do daily exercises of deep beathing or get into the habit of breathing more deeply than we do.
This is a pneumothorax or collapsed lung. It is generally brought on by a puncture in the chest that allows air into the chest cavity outside the lung. As the diaphragm expands, air is drawn in through the hole in the chest wall, and the lung will not fully expand. After a short period and continued respiration, the lung will not be able to inflate. Gas exchange will then be seriously reduced or not occur at all, and the victim willl rapidly begin to suffocate. Use the link below for more information.
When you inhale the volume increases, because the chest cavity expands to hold your breath.It increases.
It expands
It expands
Short answer: to let air in. Medium answer: a big pint glass holds more water than a little tiny shot glass. The pint glass has more room, more volume. Your expanded chest holds more air so air rushes to fill the space. Longer answer: when you breathe in your intercostal muscles contract pulling your rib cage up and out. At the same time your diaphragm, the muscular sheet at the bottom of your lungs pulls down.
the chest cavity expands.
The doctor will make an incision under the arm, to insert a chest tube. This chest tube will drain off any blood in the lungs, allowing it to re inflate.
Our chest will expand.
Decrease
its all by pressure, our diaphragm (muscle in our chest) contracts and relaxes causing high and low pressure and makes the lungs expand etc, think of a balloon in a jar and you can controll the pressure on the outside of the balloon, it will inflate and deflte