The diaphragm, below the lungs, contracts causing a lower pressure in the lungs, and pulls the air in.
To exhale, the diaphragm relaxes, and the chest muscles contract, forcing the lungs to be smaller and the air to be pushed out.
While having sex, this happens faster as we need more energy. ah! ah! ah! oh! oh!oh!
lungs
breathing is the human action that causes the lungs to be filled with air.
Air enters through the trachea and into the lungs.
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.
You might be clostrophobic or there might be a lot of dust in the house which would block the moisture in your lungs. This would make you gasp for air.
Oxygen enters the bloodstream through the alveoli in the lungs. When you breathe, oxygen from the air diffuses across the thin walls of the alveoli into the surrounding capillaries, where it binds to hemoglobin in red blood cells for transport throughout the body.
the expansion and relaxation of your diaphram.
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 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.
Because you suck in air through your mouth or nose and it goes into your lungs... it's called breathing =)
your diafram
The physical act of moving air into and out of the lungs is called ventilation. It involves inhalation, where air is drawn into the lungs, and exhalation, where air is expelled from the lungs. This process is essential for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be removed.