'It's produced mainly by the corrugator muscle, which lowers & pulls together the eyebrows'
frown
FACIAL EXPRESSIONS: Its produced mainly by the corrugator muscle, which lowers & pulls together the eyebrows
It's produced mainly by the corrugator muscle, which lowers & pulls together the eyebrows
It's produced mainly by the corrugator muscle, which lowers & pulls together the eyebrows
FACIAL EXPRESSIONS
frown
FACIAL EXPRESSIONS