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contraction of the mentalis muscle after a tap on the side of the nose.
Contraction of the mentalis muscle with elevation of lower lip and wrinkling of skin of chin. The reflex is elicited by percussion of the side of the nose.
See also: reflex
na·so·men·tal re·flex(nāzō-mentăl rēfleks)
Contraction of mentalis muscle after a tap on side of nose.