Major internal body cavities drawn, defined and discussed!

The Human Body is a complex, amazing biological machine.
'Human Biology Explained' is a YouTube video series that uses simple drawings to illustrate, and help you develop an understanding of, key anatomy and physiology concepts.

Human Biology Explained is on:
Google+ http://bit.ly/1diSfNh
Twitter @humanbiology1

Dr Mario Ricci
The School of Medical Sciences, The University of Adelaide
http://www.adelaide.edu.au

Apple Distinguished Educator (Class of 2013) http://bit.ly/1cyVD2S

Made on iPad and Mac.