In this second part of our Ultrasound series we look at how the technology behind Ultrasound actually works and how it can 'see' inside your body.

Thanks to Charlotte Henningsen, MS, RT(R), RDMS, RVT, FSDMS, FAIUM ( adu.edu ) for providing some of the imagery in this video.

For more information on Ultrasound scans: http://www.nibib.nih.gov/science-education/science-topics/ultrasound

For NIBIB's Copyright Policy: http://www.nibib.nih.gov/policies#copyright