Korean war ribbon medal identification help

Hi.

I need help finding information out on these ribbons and and what these metal star clusters mean. I know that two of them are service medals for Korea one is the UN service ribbon. I know the middle pin at the bottom that award I know has to do with medical but can someone help me more with that. My mother was an m a e s Air Force flight nurse during the Korean War. She was a lieutenant and was upgraded to Captain at the end. I just need help with identifying all these and I'm sorry the colors are so faded but it's 70 some years ago. Any help you can get and I know there's websites but I haven't been able to find some of these ribbon colors and what the little clusters are those little metal Stars or oak clusters whatever they're called mean if there's more than one. Thank you

 

United States Air Force USAF Master Flight Nurse Wings

 

Thank you. Do you know what the little metal looking h thing is in the middle between the ribbons and the flight nurse wings? Also do you know what the three little clusters of stars or oak stars or where those things are called what that means? I'm still trying to find out some of the ribbons mean and why there's a cluster of three on the one.

 

As replied on your other thread:

Third down are Captain Bars

 

Regarding the stars...
https://en.m.wikipedia.org/wiki/Service_star

 

Thank you. So the silver metal looking one is a captain's bars thank you that makes sense because she did leave as a captain in 1954.