Its lungs are similar to those of humans, but the chest muscles are not involved in respiration, and no ribs or diaphragm exist to help move air in and out.
And later in future videos when we do cellular respiration and glycolysis and all that, whenever we show energy, it's really from electrons going from uncomfortable states to more comfortable states.
Now this is somebody who is brain-dead, legally dead, definitely checked out, but is being kept alive on a respirator, so that their organs will be oxygenated for transplantation.