What the mandible is mostly to the maxilla?

The mandible is primarily a movable bone that serves as the lower jaw, while the maxilla is the fixed upper jaw. Together, they form the jaw structure, facilitating functions such as chewing and speaking. The mandible articulates with the maxilla at the temporomandibular joint (TMJ), allowing for the opening and closing of the mouth. This relationship is crucial for effective mastication and proper alignment of the teeth.