Figure 14 - Threshold of the adductor reflex is plotted with respect to intrathoracic pressure.
From the following article
Anatomy and development and physiology of the larynx
Clarence T. Sasaki
GI Motility online (2006)
doi:10.1038/gimo7
Note the development of a linear response. (Source: Ikari T, Sasaki C. Glottic closure reflex: control mechanisms Ann Otol Rhino Laryngol 1980;89(3): 220-224, with permission from Annals Publishing Co.)
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