Asked by Brendan Fabre on Sep 23, 2024
Verified
Which of the following muscles of facial expression is the only one that closes the eye when blinking?
A) Nasalis
B) Orbicularis oris
C) Risorius
D) Mentalis
E) Orbicularis oculi
Orbicularis Oculi
The orbicularis oculi is a circular muscle surrounding the eye that allows for blinking and squinting.
Orbicularis Oris
A complex of muscles in the lips that encircles the mouth, enabling movements involved in speech and facial expressions.
Nasalis
A facial muscle responsible for the compression of the nasal cartilage.
- Determine the muscles responsible for expressions of joy such as smiling and laughing.
Verified Answer
MM
Menaka Moorthy5 days ago
Final Answer :
E
Explanation :
The muscle that closes the eye when blinking is the orbicularis oculi. The other muscles listed are involved in other facial expressions such as wrinkling the nose (nasalis), puckering the lips (orbicularis oris), smiling (risorius), or protruding the chin (mentalis).
Learning Objectives
- Determine the muscles responsible for expressions of joy such as smiling and laughing.