Yes it did entertain me also but more importantly informed me.
This image is of an old Kata called Seiuchin.
It is a map of the blood systems of the human body and how to attack them.
This posture we see the hands depicting not only the subclavian arteries, but the following move is how to tear them. The name Seiuchin translates as "Tearing".
Interesting, i know that they use some medical knowledge of human body anatomy in Martial arts. But i thought only bones they know well about it, ability to localize an injury to Subclavian artery means that they know what they are doing.
This is interesting, looking forward to read a blog about it in details.
Thanks @kyusho
Hey Doc, sorry it took so long, I have filmed the subclavian artery attack and will post it if you are interested... sorry it took so long as travels got in the way. Just let me know!