Medical Dictionary
nasalis
noun na·sa·lis \nā-ˈzā-ləs, -ˈsā-\
Medical Definition of NASALIS
: a small muscle on each side of the nose that constricts the nasal aperture by the action of a triangular transverse portion which draws the lateral part of the aperture upward and a quadrangular alar portion which draws it downward
Illustration of NASALIS
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