A zygomatic bone is a diamond-shaped facial bone located below and to the side of the eye socket (orbit), forming the widest part of your cheek. It's a crucial part of the midface and contributes to the structure and protection of the eye.
Details of the Zygomatic Bone
- Location: Positioned laterally and inferiorly to the orbit. It contributes significantly to the prominence of the cheeks.
- Shape: Characteristically diamond-shaped.
- Articulations: The zygomatic bone connects with several other bones of the skull, including:
- Frontal Bone: At the outer edge of the orbit.
- Sphenoid Bone: Within the orbit.
- Maxilla: Also within the orbit.
- Temporal Bone: Forming the zygomatic arch.
Function
The zygomatic bone serves several important functions:
- Facial Structure: It significantly contributes to the overall shape and appearance of the face, particularly the prominence of the cheeks.
- Eye Socket Support: It forms part of the bony orbit, providing structural support and protection for the eye.
- Muscle Attachment: It serves as an attachment point for muscles involved in facial expression, such as the zygomaticus major and minor, which are crucial for smiling.
Clinical Significance
Fractures of the zygomatic bone (often called zygomatic arch fractures or cheekbone fractures) are common facial injuries, frequently resulting from trauma. These fractures can lead to:
- Facial Deformity: Alteration in cheek prominence.
- Visual Disturbances: Due to involvement of the orbit.
- Difficulty Chewing: Due to disrupted muscle attachments.
- Sensory Changes: Numbness in the cheek area.
