You can see everything teammates have asked of you using the request inbox.
Access it by going to My Stuff >> Prioritizer, then click the inbox icon in the view toolbar.
From here, you can:
view the items others have assigned to you
add requests to your Prioritizer
politely decline a request from a teammate
ask for more details before accepting an item
Under the page title, you can filter your inbox according to properties like what result it's aligned to, who assigned it, and more.
You can add an item to your Prioritizer or send the assignor an update using the options below the item.