According to Kenhub, the skull's two zygomatic bones, also known as the zygoma, support facial tissue, pronounce the shape of the cheeks and form the lower, outer portion of the orbital socket. The zygomatic bones house the insertion points for the masseter muscles, which are one of the four types of muscles required for chewing.Continue Reading
Kenhub describes the zygomatic bone as an oddly shaped portion of the skull that protrudes laterally to form the prominent shape of cheekbones. The level of protrusion from the rest of the skull makes the zygomatic bone prone to fractures. Zygomatic fractures are the second most common type of facial fracture.
The Merck Manual Home Health Handbook states that fractures to the zygomatic bone may result in the inability to open the jaw fully, as well as changes in the way a person's teeth fit together. Irregularities in the bone due to fracture are typically noticeable by running a finger along the bone. Kenhub lists the symptoms of a zygomatic fractures as pain, a flattened cheek area, swelling, bone displacement and subconjunctival hemorrhage, which manifests as a red patch in the white of the eye. According to the Merck Manual Home Health Handbook, treatment of a severely fractured zygomatic bone may require jaw immobilization or surgery to repair the bone with metal plates and screws.Learn more about Bones
The bones of the skull change as an individual grows older. Plastic surgeons studying humans using three-dimensional CAT scans note several important changes as people grow older. According to NPR, these changes show up primarily in the eye, the cheek area and the jaw. These doctors attribute the "windswept" look of individuals with face-lifts and the deep-set eyes in older people to these changes.Full Answer >
The brain is protected by one of two main parts of the skull called the neurocranium, which actually consists of eight different bones. The neurocranium includes the frontal bone, two parietal bones, two temporal bones, occipital, sphenoid and ethmoid bones.Full Answer >
Examples of fixed joints include the joints between the bones in the skull and the joint where the radius and ulna bones meet in the lower arm. Fixed joints, also known as fibrous joints, are places where two bones come together in the body but are unable to move. This type of joint is held together by fibrous connective tissue rather than ligaments and tendons.Full Answer >
The main and overall function of the skull is to protect the brain and sensory organs and support facial structures. Individual bones within the structure of the skull take on other and more specific roles.Full Answer >