Labia, you were asking for it.
. . . flaps!
The flaps are simply called flaps.
They are quite literally called flaps, and they make the plane go up, down, left and right.
Cats have a special gland on the roof of their mouth that allows them to 'taste' the scent, letting them smell it better. So in a sense they are. I am sorry I cannot remember what it is called and I can't find it.
winglett
Flap caps or Painters Caps with flaps
winglett
by their mouth
Flaps is the only name, although there are similar devices called slats and spoilers.
the claws and mouth
The ear flaps are called 'leather'.
tricuspid valve