Covid 19 is a respiratory illness caused by a new type of coronavirus but what is the respiratory system and how is our lungs affected Covid 19.
Our respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide also known as something called gas exchange.
When we become infected with Covid 19 it can cause an infection and pass of this respiratory system known as the respiratory tree which is found in our lungs.
The respiratory tree also called the bronchial tree is a name given to the branch like structure in her lungs whic
h includes the bronchi right down to the tiny air sacs called alveoli.
When we contract Covid 19 the lining of the respiratory tree to believe becomes damaged irritating the nerves in the lining of the airway and causing that dry cough we’ve heard about.
However for a small number of people the infection can cause more severe problems by affecting what’s known as gas exchange gas exchange happens around the alveoli those tiny air sacs at the tips of the respiratory oxygen passes into the blood and carbon dioxide passes from the blood into the alveoli and is then exhaled.
If Covid 19 effects this process our body becomes less able to take on oxygen and get rid of that carbon dioxide over time and some people will need a ventilator to help them breathe.