VBA: Are named ranges a part of a collection?

Hey everyone;

Writing up some code, and I have a workbook with many named ranges. Question is simple...

Are named ranges a part of a collection object that I can use?

Looking to do something like:

For each NM in workbook.namedranges
for each cell in NM
blahblahblah
next
next

Bonus points if you let me know how to determine collection objects on my own in the future!