vertical muscle of tongue
an intrinsic muscle of the tongue, consisting of fibers that pass from the aponeurosis of the dorsum to the aponeurosis of the inferior surface; action, decreases the superior to inferior dimension of (flattens) the tongue; nerve supply, hypoglossal for motor, lingual for sensory.
Synonym(s): musculus verticalis linguaeTA
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Examples: glitazone, GI cocktail, etc.