Wednesday 4 December 2019

Respiratory system

The respiratory system is made up of a group of organs that work together to help us breathe.


When we breathe in we take oxygen and when we breathe out we expel carbon dioxide.

The different parts of this system are: 
  1. The mouth or nose
  2. The trachea
  3. The lungs
If you want to underestand better the system click on the following videos and enjoy! 



No comments:

Post a Comment