Final answer:
The maxilla, also known as the maxillary bone, is not a force distribution unit. It forms the upper jaw and supports the upper teeth. It provides support and attachment for the chewing muscles.
Step-by-step explanation:
The maxilla, also known as the maxillary bone, is one of a pair that forms the upper jaw and supports the upper teeth. It plays a crucial role in the mechanical digestion process of breaking down food before it enters the stomach. The maxilla is not a force distribution unit, but rather a bone that provides support and attachment for the muscles involved in chewing, such as the masseter muscles.