Air Filter Intake Duct

[TCamusJr]

So I took apart my air filter duct when I cleaned my throttle body (thanks to that handy dandy how-to!) and I've reconnected it all, only now it appears there are two more places for me to plug in hoses on the left, yet I can't find said hoses. Kinda silly, I know. So can someone please tell me how many hoses in total I should have hooked up to that duct and from where those hoses originate? Am I supposed to have two extra places to plug in hoses on the left side? And if not, and I'm unable to locate the MIA hoses, is it detremental to have those holes open - should I tape up those holes?

I know I know, but humor me, please.