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The zygomatic arch is a bony structure that forms the prominence of the cheekbone and serves as a site for attachment of several muscles of the jaw and neck. It is formed by two bones: the zygomatic bone (also known as the cheekbone) and the temporal bone of the skull.
The zygomatic bone contributes to the anterior part of the zygomatic arch, forming the prominence of the cheekbone. The temporal bone contributes to the posterior part of the zygomatic arch, with the zygomatic process of the temporal bone extending forward to join with the zygomatic bone.
Together, the zygomatic bone and temporal bone form a robust arch that protects the temporomandibular joint (TMJ) and provides attachment sites for muscles involved in chewing and facial expression.
