Respiratory System - How The Respiratory System Works

Functions of the Respiratory System00:00:16

The respiratory system primarily transports air, protects against inhaled particles, and facilitates the exchange of oxygen and carbon dioxide, essentially controlling breathing.

Components of the Respiratory System00:00:36

Key components include the nose, nasal cavity, mouth, pharynx (throat), larynx (voice box), trachea (windpipe), bronchi, bronchioles, alveoli, and the diaphragm. The epiglottis, a flap-like structure, prevents food from entering the trachea.

How the Breathing Process Works00:01:28

Air enters through the nose or mouth, is humidified and warmed by the conchae, passes through the pharynx and trachea (guided by the epiglottis), and then into the bronchi, bronchioles, and finally the alveoli. Here, oxygen enters the bloodstream in capillaries, and carbon dioxide is released and exhaled. The diaphragm contracts during inhalation and relaxes during exhalation to facilitate this process.

Common Respiratory Disorders00:03:01

Minor disorders include the common cold, influenza, acute bronchitis, and pneumonia. More serious conditions include chronic bronchitis (often caused by tobacco smoke), emphysema (overstretched alveoli), and lung cancer (mainly caused by tobacco smoke).

Maintaining a Healthy Respiratory System00:03:34

To maintain respiratory health, it's advised to maintain a healthy weight, drink plenty of water, consume nutrient-rich foods, limit allergen exposure, practice good hygiene, avoid excessive alcohol, get regular aerobic exercise, and add indoor plants to improve air quality.