Multiple choice

Which of the following muscles causes wrinkling of the skin of chin?

  1. Risorius

  2. Depressor anguli oris

  3. Depressor labii inferiois

  4. Mentalis

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is a paired muscle lying at the lower end of the chin. It causes protrusion of the lower lip and elevates the skin of the chin. As the lower lip is raised, it results in elevation and wrinkling of the skin of chin.