Respiratory System

Dhevin Ramnauth

What does the respiratory system do?

The Respiratory System provides oxygen needed for cellular respiration and removes carbon dioxide from the body.

What are Alveoli and what are their purpose?

  • Alveoli- Sacs at the end of the Bronchioles where oxygen and carbon dioxide are exchanged

How the blood get Oxygen & CO2

Oxygen enters the blood from the lungs and carbon dioxide is expelled out of the blood into the lungs. The blood serves to transport both gases. Oxygen is carried to the cells. Carbon dioxide is carried away from the cells.


  • Asthma: The airways are persistently inflamed, and may occasionally spasm, causing wheezing and shortness of breath. Allergies, infections, or pollution can trigger asthma's symptoms / Some symptoms are Coughing, especially at night Wheezing Shortness of breath Chest tightness, pain, or pressure / To Treat it you need anti-inflamatory drugs or steroids
  • Bronchitis: Is a respiratory disease in which the mucus membrane in the lungs' bronchial passages becomes inflamed. / the irritated membrane swells and grows thicker, it narrows or shuts off the tiny airways in the lungs, resulting in coughing spells that may be accompanied by phlegm and breathlessness. / Prevention is not to smoke / can usually be treated by itself.