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.
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.
hilum
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
The trachea, also known as the windpipe, channels air from the larynx down into the bronchi, which lead into the lungs. It serves as a crucial passage for air to enter and exit the respiratory system. The trachea is lined with cilia and mucus to help filter and moisten the air before it reaches the lungs.
carbon dioxide
Air enters through the trachea and into the lungs.
The main organ of the respiratory system is the lungs. They are responsible for the exchange of oxygen and carbon dioxide between the air and the bloodstream. The lungs facilitate breathing, allowing air to enter and exit the body, which is essential for maintaining cellular respiration and overall metabolism.
Through your nose and mouth.
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.
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.