A question about Krang's status as a disembodied brain.

[neatoman]

If Krang is a disembodied brain, does that mean his species has eyes and a mouth directly attached to the brain? Like not even through nerves or that they're all inside a skull, but that the eyes and mouth are directly inside the brain? And if the mouth is inside the brain, that would mean food would have to pass directly into the brain?

I know most versions of Krang are not disembodied brains, just Utroms and there is at least one episode that just shows his species to be Utroms/Utrom-like, but there is at least one episode where it is made absolutely clear that he's the disembodied brain of a larger creature.