Capacitors Broke Off, MacBook Still Seems to Work...

Pictures are of the logic board in a Macbook Pro 13" Mid 2012 with 2.9GHz Intel I7. Two capacitors(?) broke off while I was trying to remove the base of the unibody with a stripped screw. They are located towards the center of the photos. I included multiple angles to help with identification. No systems on the laptop seem to be malfunctioning. I lost one of the two, and am not even sure they are both the same part. I thought about trying to solder them back in place. The laptop is seemly fully functional. I have several questions:

What are the two missing pieces?

Does anything else appear to be missing?

What system should the missing parts be affecting?

Is it safe to continue to use the Macbook without them?

Can I simply try to solder replacement capacitors(?) back into place?

Again, no system seems to be malfunctioning. No errors are present in the Apple Hardware Test and everything appears to be in working order. I cannot find a problem as a result of the missing parts.

Thanks to anyone who takes a look or can lend advice in advance.