There are a number of gases that enter and leave the lungs - predominantly, humans Inspire (Breathe in) Oxygen and Expire (Breathe out) Carbon Dioxide.
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Carbon Dioxide, Nitrogen and Oxygen 1) Nitrogen which is inert, and 2) Carbon Dioxide which is created by combining an oxygen atom with two atoms of carbon. Oxygen which is not used by the body will also be exhaled, but Ni and CO2 are the major ones.
Lungs excrete carbon dioxide.
Two main gases exchange in the lungs: oxygen and carbon dioxide.
Oxygen and carbon dioxide
The carbon dioxide and oxygen are the two main gases in plasma. When blood travels to the lungs the concentration of these two gases changes.
Oxygen and carbon dioxide in the alceoliCO2 and O2
oxygen and carbon dioxide
The human respiratory system contains two lungs, symmetrically arranged in the chest, the trachea, which leads from the lungs to the mouth and nose. This simple arrangement allows humans to breathe.
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.
Oxygen and carbon dioxide increase and decrease in the lungs.
Carbon Dioxide (CO2) and Oxygen (O2) can enter leaves through the pore.
Primary brochi first enter the lungs on both the left and right sides.
the trachea is air passage tube that allows air to enter your lungs. the bronchi are two little tubes that are connected to the end of your trachea and lead to the lungs.
The air that you inhale is held in the lungs and the oxygen is absorbed into the blood through the alveoli-capillary interface. This means that there is an exchange of gases across two membranes - taking in oxygen into the capillary and attachment of oxygen to the carrier protein, while detachment of carbon dioxide from the carrier protein and expelling it into the lungs. Most of the other gases cannot be exchanged similarly, and are just held in the lungs until expulsion.