How is breathing involuntary if the muscles that control it are skeletal? Breathing is involuntary. However, the muscles that control it are skeletal: intercostal muscles and the diaphragm. Are there other muscles involved? Is it that these skeletal muscles are being controlled and/or acting involuntarily?
Humans can both continue to breathe while asleep, and they can also intentionally take a deep breath.
How is breathing be an involuntary act, that can also be controlled?