Respiratory System
Snemalna Knjiga Besedilo
- I am sorry to inform you that you have been diagnosed with COVID-19
- Oh No!
- Would you like me to explain how this disease works?
- The virus kills by damaging the respiratory system; I'll explain the respiratory system now as it is important for the explanation
- Yes Please
- Oxygen enters the body via the nasal an oral cavities, also known as your nose and mouth, through the larynx and pharynx, through the trachea, and into the lungs.
- From there the oxygen goes through the bronchus, of which there are two, leading to both lungs, through the bronchi, and finally into the alveoli, this is where oxygen diffuses into the capillaries surrounding the alveoli a process called inhalation, and where carbon dioxide diffuses from the capillaries to the alveoli and exits the body, a process called exhalation.
- Right Bronchus
- Nasal CavityOral Cavity
- Trachea
- PharynxLarynx
- Left Bronchus
- Bronchioles
- When the body wants to inhale, a process controlled by the brain stem, the diaphragm relaxes, drawing the lungs down and creating a vacuum in the lungs, causing air to rush in, the intercostal muscle on the ribcage also helps bring the ribcage up and out, allowing even more air in
- But how is the air drawn into the lungs?
- Yes and no, it is not the virus itself that damages the lungs, rather it is the immune system itself
- What do you mean?
- So, the virus kills lung cells, which damages the lungs’ability to breathe, resulting in low amounts of oxygen in the body, and high amounts of carbon dioxide, which kills the person
- So, when the body inhales, the diaphragm and intercostal muscles create a vacuum in the lungs, drawing air in, the air goes through the nose and mouth, and into the lungs, where it goes through several bronchioles until arriving in the alveoli, where it is transferred to the blood?
- Correct
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