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I really don't know. I just found it after Googling at this site:
http://www.eyhkc.com/dragon.html
It appears to be the 11th and 12th movements in their 31 movements.

It is a hapkido site. I...

I highly doubt if it gets into your blood. If it did, I imagine there would be quite an immune response to a foreign protein. Just an educated guess though.

Pb

http://www.eyhkc.com/images/31m/31m11.jpg

Don't know if this helps.