big bad wolf
The only person I could think of like that would be Master Roshi from Dragon Ball. May be completely wrong though.
The only one I can locate is The Mighty B
Danny Phantom.
The chest cavity increases in size during inhalation
The space in your chest cavity increases.
The series was called 8 man
Increases .
When you inhale, the volume of your chest cavity increases. This expansion is caused by the contraction of the diaphragm and intercostal muscles, allowing more space for the lungs to expand and fill with air.
inhaling
It increases.
the lungs push against your chest when you breathe causing an almost flexing motion
was this a cartoon from the sixties or early seventies? I have exhausted all of my ideas like Atom Ant, Secret Squirrel, or Fearless Fly. Did he say "my glasses, I lost my glasses" Actually, I just checked and it was an "F" on his chest and it was Fearless Fly from 1965.