Asked by Sukhwinder Singh on May 05, 2024
Verified
The zygomaticus major muscle
A) puckers the mouth for kissing.
B) contributes to pouting.
C) contributes to laughing and smiling.
D) causes crow's feet wrinkles.
E) raises the eyelid.
Zygomaticus Major
A facial muscle that draws the angle of the mouth upward and outward, primarily involved in smiling.
Crow's Feet
Fine lines or wrinkles that form around the outer corners of the eyes, often associated with aging or frequent exposure to sunlight.
- Identify the muscles involved in facial expressions and their specific actions.
Verified Answer
ZK
Zybrea KnightMay 07, 2024
Final Answer :
C
Explanation :
The zygomaticus major muscle is primarily responsible for elevating the corners of the mouth, which contributes to laughing and smiling.
Learning Objectives
- Identify the muscles involved in facial expressions and their specific actions.