Much like as in a concertina or a piano accordian. Body muscles increase the volume of the chest, and air rushes in to occupy the extra space. Then the body muscles reduce the volume and to avoid being pressurised the air is pushed out.
Air is a mixture of gases.When we inhale we reduce pressure in our lungs and thus air is diffused in our lungs.This diffusion takes place inside the lungs and between the bronchities.Here the air passage is the trachea/wind pipe.
hilum
The trachea, also known as the windpipe, is a tube that carries air to and from the lungs. Its main function is to provide a pathway for air to enter and exit the lungs during breathing.
The trachea, also known as the windpipe, is a tube that carries air from the mouth and nose to the lungs. Its main function is to provide a passageway for air to enter and exit the lungs, allowing for breathing to occur. The trachea is lined with cilia and mucus to help filter and clean the air before it reaches the lungs.
lungs
carbon dioxide
Air enters through the trachea and into the lungs.
Through your nose and mouth.
Air can enter the body by the mouth or the nose. Air then goes down the windpipe to the lungs where it can enter the bloodstream.
Lizards breathe through their lungs, similar to mammals. They expand and contract their chest cavity to allow air to enter and exit the lungs. Some lizards may also have a special adaptation called a "branchial pump" that helps them breathe when they are active.
The muscles under the ribs in the human body help with breathing by expanding and contracting the chest cavity to allow air to enter and exit the lungs.
The perihilar areas refer to the region around the hila of the lungs, where the main bronchi, blood vessels, and lymphatics enter and exit the lungs. These areas are important for the circulation and drainage of air and fluids within the lungs. Changes in the perihilar areas can indicate certain lung diseases or conditions.