What is the zygomatic bone and what is its alternative name?

The zygomatic bone, also known as the malar bone, is a facial bone that forms the bony prominence of the cheek. The term 'malar' comes from the Latin word 'mala', meaning cheek.

What are the main parts of the zygomatic bone?

The zygomatic bone consists of three main components: the body, frontal process, and temporal process.

What are the surfaces of the zygomatic bone body and their functions?

The body has three surfaces: the orbital surface contributes to the orbit and contains the zygomatico-orbital foramen; the lateral surface is subcutaneous and contains the zygomaticofacial foramen; and the temporal surface forms part of the temporal fossa and contains the zygomaticotemporal foramen.

What are the processes of the zygomatic bone and what do they articulate with?

The zygomatic bone has two processes: the frontal process articulates with the frontal bone and features Whitnall’s tubercle, and the temporal process joins the temporal bone to form the zygomatic arch.

What is the clinical significance of the zygomatic bone's frontal process?

The frontal process serves as a buttress that helps disperse masticatory forces to the frontal bone, providing structural support for the face.

What is Os Japonicum and who is it commonly found in?

Os Japonicum is a normal anatomical variant where a fissure divides the zygomatic bone into upper and lower parts. It is more commonly seen in the Mongolian race and is associated with flatter malar prominences.

Zygomatic Bone – Cheekbone Anatomy & Orbit Role