5815 views

Importance of Breathing - 1/2

Breathing is just one form that sends oxygen to different parts of the the body and depose carbon dioxide. Another important operation require the movement of blood by the circulatory system.

You need to login to download this video.
login or signup

Channels: Others

Tags: Breathing

Uploaded by: ( Send Message ) on 23-04-2009.

Duration: 0m 44s