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Both Inspired and expired air have higher amounts of oxygen than Carbon Dioxide. Inspired air has higher amounts of oxygen than expired, while expired air has higher amounts of Carbon Dioxide than inspired air.
Modern
Inspiration brings air into the lungs. Expiration expels air from the lungs. In most lung diseases, the air breathed in is not completely or easily exhaled.
Tidal Volume
An anapnograph is a variety of spirometer, a device used to measure the volume of air inspired and expired by the lungs.
The medical term for the amount of air inspired and expired during normal breathing is tidal volume.
I think you'll find that air is inspired by great people, men and women air has found to be influential, noble or even just important to air personally. As for expiration.. just check the best before date.
oxygen! There is 21 percent oxygen in inspired ( the stuff you breath in) air and 13 percent in expired(the stuff you breath out)
Alveolar air mixes with air in the anatomic dead space on its way, which is rich in oxygen. hence % of oxygen is more in expired air. Thus though amount of CO2 does not decrease, percentage decreases as inspired air contains very less amount of CO2 (0.03%).
Expired air is air that you breathe out of your lungs.
Ambient air (the air you breathe in) contains about 21% oxygen and about 380 ppm carbon dioxide. This changes slightly summer to winter, downwind of green vegetation during the day and in buildings.
I did not quite get this, but if this helps, good. ( this is from my biology book)"Carbon dioxide is made by cells as a waste product of respiration, and is released across the gaseous exchange surface"