Match each muscle with the corresponding description of its action.
-Create(s) smile expression
A)Buccinator
B)Corrugator supercilii
C)Epicranius
D)Orbicularis oculi
E)Pterygoid
F)Sternocleidomastoid

Question

Quizplus · Accepted Answer

The buccinator muscle creates the smile expression by pulling the corners of the mouth towards the sides.

Answer: B 
 The corrugator supercilii muscle is responsible for the vertical wrinkles between the eyebrows that occur when someone frowns or expresses confusion.

Answer: D 
 The orbicularis oculi muscle is responsible for closing and squinting the eyes, which is a component of a genuine smile.

Answer: E 
 The pterygoid muscles are involved in chewing and do not play a significant role in facial expression.

Answer: F 
 The sternocleidomastoid muscle is responsible for turning the head towards the side and does not contribute to facial expression.

Cannot determine: C 
 The epicranius muscle is a broad muscle that covers the top of the skull and is involved in moving the scalp, but it does not play a significant role in facial expression.

Match Each Muscle with the Corresponding Description of Its Action