Which muscle is described as expressing sarcasm?

• A. Depressor Labii Inferioris
• B. Quadratus Labii Inferioris
• C. Playsma
• D. Mentalis

Answer: (B)

Expressing sarcasm is shown by a sneer of the lower lip. The muscle that achieves this by pulling the lower lip downward and outward is the quadratus labii inferioris (also known as the depressor labii inferioris). That downward pull creates the scornful mouth shape typical of sarcasm, making it the best match.

The other muscles don’t produce that same sneer. The mentalis lifts and protrudes the lower lip to form a pout or show doubt, while the platysma, which also can lower the corners of the mouth, mainly tenses neck skin and expresses fear or sadness rather than sarcasm. The misspelled “playsma” refers to the platysma, which aligns with that different expression rather than sarcasm.