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. Author manuscript; available in PMC: 2013 Dec 11.
Published in final edited form as: Indian J Med Res. 2010 Feb;131:176–187.

Fig. 1.

Fig. 1

The role of UADM (upper airway dilator muscles) in stabilizing breathing. Negative intrathoracic pressure plus CO2 can activate UADM, but negative pressure can also trigger arousal. A hypnotic could potentially change the arousal threshold to stabilize breathing and potentially prevent the consequences of repetitive arousal.