ORGANS of the RESPIRATORY system and their functions

The respiratory system It fulfills one of the most basic and vital functions in all living beings: one that allows, as its name indicates, to breathe. In this lesson from a teacher we analyze the organs of the respiratory system and how they make it work so that you can better understand how one of the most essential systems for human life works. We started!

Before knowing the organs of the respiratory system, we are going to discover what this biological system is. In order to perform the gas exchange With the environment they inhabit, living beings need a whole set of organs and pathways. This set is what we call respiratory system or apparatus and it is as varied as the animals it supports and the habitats in which they live.

In the vast majority of cases, the respiratory system makes get air into the body of the subject, which extracts oxygen (O2) from it, expelling CO2 in return that would harm the body if not eliminated.

The respiratory system is closely linked to the circulatory system

, since, although it is the respiratory system that captures oxygen and releases CO2, the person in charge of distribute oxygen where it is needed and where the CO2 is collected and carried to the lungs for expulsion is the circulatory system. Without him, oxygen would not reach the cells destination, nor could they get rid of CO2, which would affect the body's pH level. Taking this into account, we see that breathing is done in two stages, inhalation, which is when the air enters the body, and exhalation, when it is released.

Humans, mammals and birds in general, have a respiratory system that works based on lungs, the most important organ of the same. However, this is far from the only way to carry out gas exchange: other animals use forms of cutaneous respiration or have gills like fish, to be able to breathe in medium aquatic.

Living beings need oxygen to be able to extract energy from glucose, which is the energy base of our body. Similarly, the expulsion of carbon dioxide is equally vital. These are the two most elementary functions of him.