Final answer:
A lateral Ceph of the skull is a lateral view of the skull that shows the brain case, zygomatic arch, and jaws. It is used for studying the skull's structure and features in fields like orthodontics and oral and maxillofacial surgery.
Step-by-step explanation:
A lateral Ceph of the skull refers to a lateral view of the skull, which shows the large rounded brain case, zygomatic arch, and the upper and lower jaws. The zygomatic arch is formed by the zygomatic process of the temporal bone and the temporal process of the zygomatic bone. It is used to study the structure and features of the skull for diagnostic and treatment planning purposes in fields such as orthodontics and oral and maxillofacial surgery.