Nerves that form a large aggregation - Quarter Quiner (spell?)

Moving down the spinal column, at the bottom of the cord, the lower nerves form a large aggregation called the Quarter Quiner?

I heard this in lecture, but I don't know how to spell the word. The term "Quarter Quiner" also means horse's tail.

Give me the right spelling for this...
Thanks

Oh my, I think you mean the Cauda Equina. It's the name for the lower part of the spinal cord and is Latin for 'horse's tail' (anatomists have a tendency to give silly names like that to stuff... there are like four different structures in the body named 'goose's foot')