#1
Which muscle is primarily responsible for elevating the corners of the mouth in smiling?
#2
Which muscle is responsible for wrinkling the forehead vertically?
#3
Which muscle is responsible for puckering the lips?
#4
Which muscle is involved in raising the eyebrows and creating horizontal wrinkles on the forehead?
#5
Which muscle is responsible for raising the upper lip and flaring the nostrils?
#6
Which muscle is involved in compressing the cheeks during whistling or blowing?
#7
Which muscle is primarily responsible for lowering the corners of the mouth in expressions like sadness or disappointment?
#8
Which muscle is primarily responsible for retracting the angle of the mouth horizontally, as in expressions of contempt or disdain?
#9
Which muscle is responsible for elevating and retracting the lower lip?
#10
Which muscle is primarily responsible for retracting the lips, exposing the teeth, and producing grimaces?
#11
Which muscle is responsible for closing the eyelids tightly?
#12
Which muscle is responsible for pulling the angle of the mouth downward, as in expressions of sadness?
#13
Which muscle is primarily responsible for retracting the lower lip and exposing the lower teeth?
#14
Which muscle is responsible for elevating the upper lip and exposing the upper teeth?
#15