Help my current next duty will be in OPERATING ROOM!

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Ok this is the horror of being a nurse having some problems with memorization. I cant find and pictures with names of operating rooms instrument all over the internet. I have forgotten all about it already. I am currently a 4th year college student and I barely realize that I am going to graduate with lack of knowledge about it. Please help. Do you know any sites that provides pictures and teachings about it.?