What poetic foot is the basic unit of rhythm in the following lines?

He picked up the cake,

and the rake, and the gown,

and the milk, and the strings,

and the books, and the dish,

and the fan, and the cup,

and the ship, and the fish.
 

ANAPEST ( u u / )

Even though the first line would have its rhythm marked like this:

u / u u /

the rest of the lines would be marked like this:

u u / u u /

making the basic unit of rhythm the anapest.