cheese helps and a lot of sex :P
The diaphragm is the main muscle responsible for breathing. When it contracts, it enlarges the chest cavity and creates a vacuum that allows the lungs to expand and take in air. When it relaxes, the chest cavity decreases in size, forcing air out of the lungs.
There are no muscles in the lungs that help inhale or exhale, this is the job of the diaphragm.
the air is depleting from your lungs
you change the shape of your chest (intercostal muscles & diaphram) which increases the volume of your chest cavity the lung is sucked along with the chest wall (partial vacume in the plural space) lowering the pressure within the air spaces of the lung. Air flows from higher pressure to lower.
The air travels down into your lungs and into small air pockets called capillary The air is then transferred through the capillary as they are really thin. Oxygen from the air is taken in and used around the body and the excess carbon dioxide is breathed back out as t is not needed in the body. You lungs also get bigger as you take a breathe, this creates a larger surface area as the chest goes out. The chest gets smaller as you breathe out as your lungs relax.
When the chest cavity becomes larger, the lungs expand to fill the space. This expansion allows for more air to enter the lungs during inhalation, increasing the oxygen supply to the body. Conversely, when the chest cavity shrinks, the lungs compress and force air out during exhalation.
During respiration, the air moves between the lungs and chest through the process of inhalation and exhalation. When we inhale, the diaphragm and intercostal muscles contract, expanding the chest cavity and creating a vacuum that pulls air into the lungs. When we exhale, the diaphragm and intercostal muscles relax, causing the chest cavity to decrease in size and push air out of the lungs. This continuous cycle of inhalation and exhalation allows for the exchange of oxygen and carbon dioxide in the lungs.
The diaphragm is a sheath of muscle that separates the organs of the chest and abdomen. When you take a breath, you're flexing the diaphragm and a number of smaller muscles in your chest. This inflates the lungs, creating a partial vacuum, drawing air into your nose and mouth and into your lungs.
When your lungs move to bring in air and remove gases you are breathing.
To stop air from entering the chest cavity and collapsing the lungs.
Air moves into and out of a person's lungs through the process of inhalation and exhalation. During inhalation, the diaphragm and chest muscles contract, creating a vacuum that draws air into the lungs. During exhalation, the diaphragm and chest muscles relax, allowing air to be pushed out of the lungs.
This depends on what you mean by "chest." Air in your chest cavity is usually caused by a sucking chest wound, most commonly found in deep puncture wounds to the abdomen. The space in the abdominal cavity is filled with air from the outside environment, putting external pressure on the lungs from inside the body, making it more difficult for the lungs to fill with air. Eventually, the lungs would cease to function due to so much pressure and the individual would suffocate without emergency treatment. If you mean "chest" as in your lungs, than no. You want air there, all the time - it's good for you...I promise.