What is the Function of the Respiratory System?

Posted byVanessa RPosted inAnatomy and PhysiologyTags:, ,

To keep us alive and kicking, we breathe every second, minute, hour with the help of our Respiratory System. Have you ever wondered how this works? I’ll explain thoroughly the functions of the Respiratory System. At the end of this, I’ll share some tips on how to take care of our respiratory system to make sure it is always working at its best.

 What is the Respiratory System?

  • Made up of organs and tissues which allow the body to breathe.
  • Allows the cells to receive oxygen and release wastes, such as carbon dioxide.

Let’s take a closer look at how the respiratory system is made up and how it’s classified. It is divided into two classifications: 

  1. Upper respiratory system  – this includes the nose and its structures,  pharynx ( oropharynx, nasopharynx and laryngopharynx). Upper respiratory infection- refers to the congestion that occurs in the facial region.
  2. Lower respiratory system – this includes the trachea, bronchi and the lungs. Lower respiratory infection- this infection has now affected the lungs and could lead to pneumonia.

Recap: The respiratory system is split up into two categories: the upper respiratory system which is the nose ,the pharynx and the larynx . Moving down is the lower respiratory system which is the trachea, bronchi and the lungs. 

Functionally, the respiratory system is divided into two:

  1. Conducting zone – it is the zone which conducts the air to the lungs.
  2. Respiratory zone –it is the zone which is the site of gas exchange.

Now that you understand the respiratory system and it’s different classification and functionality, let’s talk about the responsibilities of this system.

Main Functions of the Respiratory System

  1. Functions in smell, smell receptors (olfactory receptors).
  2. Functions in sound production (phonation).
  3. Filters inspired air.
  4. Provides oxygen to cells and removes wastes.
  5. Helps to adjust the pH of the body.

Altogether, the respiratory system is a very important and crucial part of our body for us to survive.

How can we keep the Respiratory System healthy?

  1. Avoid exposure to various pollutants. Ex: Smoke (cigarettes/fire), molds
  2. Prevent infection. Ex: Wash your hand, eat healthy
  3. Exercise.

For a video version of this, watch my lecture on the Function of the Respiratory System

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