Figure 22 - Glottic alteration produced by cricothyroid (CT) and posterior cricoarytenoid action (PCA) alone and in combination.
From the following article
Anatomy and development and physiology of the larynx
Clarence T. Sasaki
GI Motility online (2006)
doi:10.1038/gimo7
Combined muscle action maximizes the cross-sectional area of the laryngeal aperture. (Source: Sasaki45 with permission from Lippincott, Williams and Wilkins.)
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