What is the name of the bone that forms the lower jaw?

The bone that forms the lower jaw is known as the mandible. It is the largest and strongest bone of the face and plays a crucial role in both the structure and function of the oral cavity. The mandible holds the lower teeth in place and is involved in essential activities such as chewing and speaking. Additionally, it provides attachment points for various muscles that facilitate these functions.

In contrast, the maxilla is the upper jaw bone that forms part of the hard palate and supports the upper teeth. The zygomatic bone, often referred to as the cheekbone, contributes to the structure of the face but does not have a direct role in the jaw's movement or function. The nasal bone is part of the structure of the nose and does not pertain to the jaw at all. Understanding the role of the mandible is important not only for anatomy but also for its implications in dental health, facial structure, and injury management.