Question

The orbicularis oris muscle

A) compresses and purses the lips
B) elevates the corner of the mouth
C) draws the lower lip inferiorly
D) draws the corner of the lip laterally

Answer 1

The orbicularis oris muscle A) compresses and purses the lips.

Step-by-step explanation:

The orbicularis oris muscle is responsible for compressing and pursing the lips.

It helps regulate what comes in and goes out of the mouth. When the orbicularis oris muscle contracts, it makes the oral opening smaller, as seen when puckering the lips for whistling.