Single motor units from the medial pterygoid muscle can be active during isometric horizontal and vertical forces.
Yalda Nozad MojaverPaul B TawadrosPolyana Moura FerreiraTerry WhittleGreg M MurrayPublished in: Journal of oral rehabilitation (2019)
The data are consistent with a stabilisation role for the medial pterygoid muscle in isometric jaw forces in the vertical and horizontal planes.