What is internal breathing

BR navigation


From: Reinhard Sinterhauf, Katharina Putz

Status: March 17, 2020

First, watch the video for the following questions:

  • Why does every cell in the body need oxygen?
  • What are the consequences for our body if it is not supplied with oxygen for just 5 minutes?
  • What would be the consequences of not being supplied with oxygen for ten minutes?
  • What is the task of inhalation?
  • What is the function of exhalation?
  • What is gas exchange?

Below you will find the answers to the questions and more detailed information.

During external respiration, the body exchanges gases with the environment in that the human being absorbs oxygen with the lungs and releases carbon dioxide. The oxygen reaches the body cells with the blood, which take up the oxygen. It is necessary to break down the nutrients in food. Water and carbon dioxide are created. This creates energy that the body needs, for example, to induce muscle movements or to maintain its temperature. This process is also called internal respiration or cellular respiration.