In the human skull, the zygomatic bone (cheekbone or malar bone) is a paired irregular bone which articulates with the maxilla, the temporal bone, the sphenoid bone and the frontal bone
Is zygomatic bone irregular?
Irregular Bones.
The irregular bones are: the vertebræ, sacrum, coccyx, temporal, sphenoid, ethmoid, zygomatic, maxilla, mandible, palatine, inferior nasal concha, and hyoid.
Is zygomatic bone a facial bone?
Zygomatic bone, also called cheekbone , or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
What do the zygomatic bones form?
The zygomatic bone (zygoma) is an irregularly shaped bone of the skull . Besides forming the prominence of the cheek, the zygomatic bone also contributes to the formation of the zygomatic arch, the walls of the temporal and infratemporal fossae, and the floor and lateral wall of the bony orbit. ...
Is the zygomatic bone part of the temporal bone?
The temporal bone consists of four parts— the squamous , mastoid, petrous and tympanic parts. ... The zygomatic process is a long, arched process projecting from the lower region of the squamous part and it articulates with the zygomatic bone. Posteroinferior to the squamous is the mastoid part.
What happens if the zygomatic bone is damaged?
Patients may develop trismus (i.e. the inability to fully open the mouth) and have difficulty with chewing . There may also be bleeding through the nose, which depends on the severity of the injury. The cheekbone of these patients may be flattened due to the malar eminence being depressed.
Why does my zygomatic bone hurt?
Zygomatic arch pain is commonly reported by patients visiting the orofacial pain clinic and is majorly accepted to be caused by masseter muscle pain . But a variety of conditions may present as orofacial pain in the zygomatic arch region, including life-threatening diseases such as salivary gland tumors.
Which bone makes up the cheek bone?
The zygomatic bone and the maxilla bone makes up the superior bony region of the cheek. The maxilla bone also makes the medial bony region of the cheek. The mandibular bone makes the lower region and lateral bony regions of the cheek.
Why is it called the zygomatic bone?
Zygomatic bone: The part of the temporal bone of the skull that forms the prominence of the cheek. ... The word “zygomatic” comes from the Greek “zygon” meaning a yoke or crossbar by which two draft animals such as oxen could be hitched to a plow or wagon .
What is the main function of the zygomatic bone?
The zygomatic bone functions as a structure which joins the bones of the face while protecting the arteries, nerves, veins, and organs which lie below the surface. The arches of the zygomatic bone provide a person’s cheeks with the structure to fill out the face.
How long do zygomatic implants last?
How Long do Zygomatic Implants Last? Given their high survival rate of 96% after 12 years , Zygomatic implants are a safe and effective treatment option, especially for patients who have lost a significant amount of jawbone and would rather avoid having a bone graft or sinus lift procedure performed.
How do you get visible zygomatic bone?
- Place your fingers over each cheekbone.
- Gently lift the skin until taut.
- Open your mouth to form an elongated “O”; you should feel resistance in your cheek muscles.
- Hold for 5 seconds.
- Complete 10-15 sets.
What does zygomatic mean?
: of, relating to, constituting, or situated in the region of the zygomatic bone or zygomatic arch.
Does the zygomatic bone have a sinus?
It contains the largest of the paranasal sinuses, the maxillary sinus . To see the posterior part of the maxilla, we’ll remove the zygomatic arch.
What is the function of temporal bone?
The temporal bone is a thick, hard bone that forms part of the side and base of the skull. This bone protects nerves and structures in the ear that control hearing and balance .
Does the temporal bone have a sinus?
Explanation: There are four paranasal sinuses in the head: the frontal, maxillary, sphenoid, and ethmoid sinuses. They function in lightening the skull, and creating mucous for the nasal cavity. The temporal bone does not contain a sinus .
