3ESO. Nutrition function I: digestive and respiratory systems.

In the nutrition function, several systems take part. Digestive, respiratory, circulatory and excretory systems play an important role in it. In this unit we are going to study digestive and respiratory systems.

The digestive system.

The digestive system. from irenebyg

Organs of digestion:

Nutrition function I: The respiratory system. from irenebyg

Mechanics of breathing.


Inside the lungs: Diffusion.



DOWNLOAD LINKS:
Download link to the Digestive system presentation.
Download link to the Respiratory system presentation.