Identify the muscle or muscles that facilitate the action described in the following situation: During a trip to New York City,you whistle loudly to hail a taxicab.

Question

Quizplus · Accepted Answer

Whistling requires the contraction of the buccinator muscle to create a small opening of the lips and the orbicularis oris muscle to shape the lips into a rounded position. Therefore, the muscle(s) that facilitate the action described in the situation is/are the buccinator and orbicularis oris muscles. Among the answer choices, only B includes both muscles.

Identify the Muscle or Muscles That Facilitate the Action Described