Air should be inhaled through the nose so that it can be warmed up to body temperature before entering the lungs. Despite this, it is perfectly possible to breathe in through the mouth, as the airways are linked to both the nasal passage and the buccal cavity (posh name for the mouth).
After being inhaled, air first passes through the trachea (windpipe) and then into the bronchial tubes, which branch out into smaller airways called bronchioles. Finally, the air reaches the alveoli in the lungs, where oxygen is exchanged for carbon dioxide in the bloodstream.
The body uses mucus to moisten inhaled air as it passes through the nasal passages. Mucus helps to humidify the air, trap foreign particles, and prevent the respiratory tract from drying out.
Exhaled air has less oxygen than inhaled air.Exhaled air has more carbon dioxide than inhaled air.Exhaled air is warmer that inhaled air.Maybe the first 2 are redundant, but I think that should work!
Yes
Inhaled air contains a greater volume of oxygen than carbon dioxide. Exhaled air is the opposite, since after the exchange of gases in the lungs the carbon dioxide in the blood is transferred into the lungs. Exhaled air contains a greater volume of carbon dioxide than oxygen. Also, there is more water vapour in exhaled air than inhaled air.
Air inhaled through the mouth is not as clean as air inhaled through the nose. Reason for this is that when we inhale air through our nose than it get filtered by hair present in our nose. But air inhaled through our mouth goes directly in without any filtration.
your nose
Inhaled air is typically warmed and humidified as it passes through the nasal passages. The purpose of this process is to protect the delicate tissues of the respiratory system from damage due to cold and dry air.
Either through the nose or the mouth
The air that is inhaled passes through the throat. More specifically, it passes through the trachea on its way to the lungs.
oxygen that is inhaled into the lungs is diffused through the small air sacs, called alveoli, into the bloodstream.
Inhaled air is warmed and moistened in the nasopharynx and oropharynx.
After being inhaled, air first passes through the trachea (windpipe) and then into the bronchial tubes, which branch out into smaller airways called bronchioles. Finally, the air reaches the alveoli in the lungs, where oxygen is exchanged for carbon dioxide in the bloodstream.
Yes
Exhaled air, which has a slightly higher amount of carbon dioxide, is heavier than inhaled air.
The body uses mucus to moisten inhaled air as it passes through the nasal passages. Mucus helps to humidify the air, trap foreign particles, and prevent the respiratory tract from drying out.
The temperature of exhaled air is higher than inhaled air because the air is warmed as it passes through our body and our lungs. Our body has a higher temperature than the ambient air, so as we breathe in, the air gets warmed up to match our body temperature.