Graphics: Where can I find the Black and White sprite segments?

From what I've seen, Pokemon Black & White's sprites are made up of several segments so that the limbs of the Pokémon can move individually.
However, online I have only been able to find the full sprites and not the individual segments.
Are the segments available somewhere?

The segments are available at the Spriter's Resource. They also have a bunch of other useful sprites. Go here and look under the Pokémon parts section to find what you're looking for though

https://www.spriters-resource.com/ds_dsi/pokemonblackwhite/