What is the primary function of the mylohyoid muscle?

The primary function of the mylohyoid muscle is to form the floor of the mouth. This thin, triangular muscle is located beneath the mandible and connects the mylohyoid line of the mandible to the body of the hyoid bone. Its position and structure are crucial for establishing the anatomical support for the oral cavity. By creating a stable floor, the mylohyoid muscle aids in the movements necessary for actions such as chewing and swallowing, while also providing a surface for the tongue to push food against during mastication. Its role in supporting the oral cavity makes it vital for proper oral function, especially when it comes to the interaction between the tongue, gums, and teeth.

While the mylohyoid muscle does have roles that indirectly relate to swallowing and speech, its primary function is accurately described as forming the floor of the mouth.