diaphragm

and leaves behind carbon dioxide.When the diaphragm is relaxed,the CO2 is exhaled alongside a mix of oxygen and other gases.

The mechanism for this projection is well understood.Your lungs contract your diaphragmand that creates a self-sustained vibration of your vocal fold,

the muscle that expands and contracts the chest with each breath.This limits the diaphragm’s range.To compensate, the hormone progesterone acts as a respiratory stimulant,

Shortly before delivery, the fetus drops down,decreasing the pressure on the diaphragmand allowing the pregnant woman to take deeper breaths.

But the respiratory system can be interrupted by a variety of conditions.Sleep apnea stops diaphragm muscles from contracting.Asthma can lead to inflamed airways which obstruct oxygen.