Hawaii Massage License Practice Exam

Which muscle is responsible for elevating the mandible?

1. Temporalis

2. Masseter

3. Digastric

4. Pterygoid

The correct answer is: Masseter

The masseter muscle plays a crucial role in the elevation of the mandible, which is essential for actions such as chewing and speaking. This muscle is located at the angle of the jaw and is one of the primary muscles associated with the mastication process. When the masseter contracts, it pulls the mandible upward, allowing the jaw to close tightly, which is particularly important when grinding food. In addition to its primary role in elevation, the masseter contributes to the overall function of the jaw by facilitating a strong bite. Its efficient contraction is vital for activities that require significant force, making it one of the most powerful muscles involved in mastication. Other muscles associated with jaw movement, like the temporalis and pterygoid muscles, have different primary functions. The temporalis also aids in elevating the mandible but has a more significant contribution to retracting it. Meanwhile, the pterygoid muscles are primarily involved in side-to-side movement and protrusion of the jaw rather than simply elevating it. The digastric muscle primarily functions to lower the mandible and assist in opening the jaw. Therefore, the most direct answer to the question regarding the muscle responsible for elevating the mandible is indeed the masseter.