Answers
The oxygen goes through the nostrils when you are inhaling. It goes through the nasal cavity, and straight to trachea. The trachea splits into two: which is known as bronchi. Now we are inside the lungs. After the bronchi, it divides into more parts which is known as bronchiole. It ends into tiny sacs called alveoli. The process really starts here. The capillaries surrounding the alveoli make exchange of gases between them. Why? Because the capillary wall is so thin, the oxygen passes through. And carbon dioxide goes out of the bronchioles, then to bronchi, trachea, nasal cavity, and lastly, the CO2 goes out of your nose.
And it happens in less than 4 seconds.
An exchange of oxygen and carbon dioxide takes place in the alveoli, small structures within the lungs. The carbon dioxide, a waste gas, is exhaled and the cycle begins again with the next breath. The diaphragm is a dome-shaped muscle below the lungs that controls breathing.
An exchange of oxygen and carbon dioxide takes place in the alveoli, small structures within the lungs. The carbon dioxide, a waste gas, is exhaled and the cycle begins again with the next breath. The diaphragm is a dome-shaped muscle below the lungs that controls breathing
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