Final answer:
True, the mandible is the lower jawbone and the largest, strongest facial bone. It is also unique as the only moveable bone in the skull, pivotal for chewing functions.
Step-by-step explanation:
True. The mandible is indeed the lower jawbone of the face and it is the largest and strongest facial bone. The mandible forms the lower jaw and is the only moveable bone of the skull. At birth, it consists of right and left halves that fuse together in the first year to form the adult mandible, which is U-shaped. This structure includes a horizontal body and a perpendicular ramus, providing sockets for the lower teeth and performing the vital function of opening and closing to chew food. The mandible is controlled by strong muscles, contributing to its powerful capabilities.
The skull consists of 22 bones, of which 21 are immobile and form a single unit. The exception is the mandible, which is the 22nd bone and the only moveable one in the skull. This important bone supports facial structures and forms the lower jaw, being an integral component of the facial skeleton which comprises fourteen bones.