How do you call the parts of eyeglasses, like i know the lens but what about the rest?

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The frame of the glasses has arms and lens-holders/placement.  The arms are held on by screws, which you can see in the hinges (joints) of the glasses

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Perhaps the middle part is called the 'bridge' as it bridges or joins the 2 halves. Under the bridge the parts that rest on our noses could be called 'nose rests', but I am not sure. 
If I break them when overseas, I will simply say "this part - broken" and the other person will probably tell me what the parts are called. That is my language strategy. )))