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.
What happens if the zygomatic bone is damaged?
Fractures of the ZMC or zygomatic arch can often lead to unsightly malar depression, which should be corrected to restore a normal facial contour. ZMC fractures can also cause significant functional issues, including trismus, enophthalmos and/or diplopia, and paresthesias of the infraorbital nerve.
What is zygomatic arch bones?
In anatomy, the zygomatic arch, or cheek bone, is a part of the skull formed by the zygomatic process of the temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone), the two being united by an oblique …
What are the parts of the zygomatic bone?
The zygomatic bone has three surfaces: lateral, posteromedial and orbital. The lateral (facial) surface faces towards the outside. It is smooth and convex, and it features a small opening called the zygomaticofacial foramen.
What bone is hardest to break?
The thigh bone is called a femur and not only is it the strongest bone in the body, it is also the longest. Because the femur is so strong, it takes a large force to break or fracture it – usually a car accident or a fall from high up.
What is the most fragile bone in the human body?
The lacrimal bone is perhaps the most fragile bone of the face and one of the smallest bones in the body. Spanning between the middle of each eye socket, each lacrimal is thin and scalelike and serves as support for the eye. The pair of lacrimal bones are two of the fourteen facial bones.
How long does it take for a zygomatic bone to heal?
Even if the position of the fractured bone has been held with plates and screws it still takes about six weeks for your cheekbone to heal completely. During this time you need to be careful to avoid an injury to this side of your face, since it may well push the cheekbone back out of position again.
How do I know if my zygomatic bone is broken?
- Flatness of the cheek.
- Altered sensation underneath the eye on the affected side.
- Problems with eyesight.
- Pain with jaw movement.
Can a zygomatic fracture heal on its own?
Zygomatic complex fractures with no or minimal displacement are often treated without surgical intervention, whereas fractures with functional or esthetic impairments in the form of diplopia, extraocular muscle entrapment, malocclusion, restricted mouth opening and/or depression of the malar prominence often …
What kind of bone is the zygomatic bone?
Anatomical terms of bone
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.
What is the difference between zygomatic arch and zygomatic bone?
Zygomatic Arch Definition
The zygomatic arch is formed from parts of both the zygomatic bone and the temporal bone. The extension of the temporal bone is known specifically as the zygomatic process, and attaches directly to the similarly shaped process on the zygomatic bone.
What is maxilla bone?
The maxilla is the bone that forms your upper jaw. … The maxilla is a major bone of the face. It’s also part of the following structures of your skull: the upper jawbone, which includes the hard palate at the front of your mouth.
What is another name for the zygomatic 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.
Why is it called zygomatic bone?
The zygomatic bone is also known as the zygomatic arch, the zygoma, the malar bone, the cheek bone and the yoke bone. 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.
How many zygomatic bones are there?
There are three zygomatic processes: Zygomatic process of the frontal bone. Zygomatic process of the temporal bone.
What is the weakest bone?
The clavicle or the collar bone is the softest and weakest bone in the body.
What is the softest bone in the body?
The stapes or stirrup is a bone in the middle ear of humans and other animals which is involved in the conduction of sound vibrations to the inner ear.
What is the most painful injury known to man?
- Shingles.
- Cluster headaches.
- Frozen shoulder.
- Broken bones.
- Complex regional pain syndrome (CRPS)
- Heart attack.
- Slipped disc.
- Sickle cell disease.
What’s the hardest bone to heal?
The femur — your thigh bone — is the largest and strongest bone in your body. When the femur breaks, it takes a long time to heal. Breaking your femur can make everyday tasks much more difficult because it’s one of the main bones used to walk.
What is stirrup bone?
Stapes bone is the smallest bone in our body. It is the innermost bone of our auditory ossicles in the middle ear, which are responsible for transmitting sound waves from the air outside to the fluid-filled labyrinth (cochlea).
What is the palatine bone?
The Adult Palatine. The palatine bones contribute to the posterior part of the roof of the mouth and floor and lateral walls of the nose, the medial wall of the maxillary sinuses and the orbital floors. Each bone (Fig. 5-66) consists of horizontal and perpendicular plates (laminae) set at right angles to each other.
How easy is it to break zygomatic bone?
The zygomatic bone is quite sturdy as it serves as a buttress between the skull and the maxilla. However, its prominence makes it particularly vulnerable to injury, especially when impact occurs on either side of the face. The most common cause of zygomatic fractures is violent altercation.
What causes a zygomatic fracture?
Zygoma fractures usually result from high-impact trauma. Leading causes of fractures include assault, motor vehicle or motorcycle accidents, sports injuries, and falls.
Will a fractured cheekbone heal on its own?
Cheekbone fractures usually heal without infection, although it may be necessary to take antibiotics, particularly if a graft has been used. Initially it may be necessary for you to take antibiotics through a vein in your arm whilst you are in hospital.
Can your nose be broken without you knowing?
When you take a blow to the nose, sometimes it’s not easy at first to determine if you’ve broken it. You could experience swelling and bruising without a break. If you have the following signs, you may have broken your nose: Serious nose pain.
What are the symptoms of a broken cheekbone?
- Pain, tenderness, and swelling.
- A flat appearance to the face.
- Vision problems.
- Blood in the side of the eye (on the affected side)
- Jaw pain, specifically when jaw is moved.
- Numbness under the eye of the injured side.
Is a broken cheekbone painful?
Cheekbone fractures commonly result from blunt force trauma to the face. While pain and bruising are commonly experienced with these injuries, they are usually not initially associated with functional deficits.
What is nose bone?
Anatomical terms of bone
The nasal bones are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face and by their junction, form the bridge of the upper one third of the nose. Each has two surfaces and four borders.
Where are cheekbones located?
Your cheekbones are the structure of your face underneath your skin, particularly the malar bones. If your malar bones are located in close proximity to your eyes, you’re considered to have high cheekbones. Lower cheekbones refer to malar bones that rest closer to the bottom of your nose.
What are cheekbones made of?
The three bony structures that help form the cheek are the zygomatic bone, the maxilla bone, and the mandibular bone. The zygomatic bone and the maxilla bone makes up the superior bony region of the cheek.
Which bone contains the mental foramen?
The mental foramen is a small foramen on the anterior surface of the mandible, typically adjacent to the root of the mandibular second premolar tooth.
Why is zygomatic arch important?
The function of the zygomatic arch is protection of the eye, origin for the masseter and part of the temporal muscles, and to provide an articulation for the mandible. The zygomatic arch is approached by an incision made along its ventral border.
What is the weakest part of the skull?
The pterion is known as the weakest part of the skull. The anterior division of the middle meningeal artery runs underneath the pterion.
What is insect maxillae?
In arthropods, the maxillae (singular maxilla) are paired structures present on the head as mouthparts in members of the clade Mandibulata, used for tasting and manipulating food.
What is the maxillary tuberosity?
The maxillary tuberosity is the most hind-most (distal) aspect of the upper jaw (maxilla), housing the sockets of the upper wisdom teeth, with its back (posterior) border curving upward and distally.
What is the longest bone in the body?
The femur bone is the longest and strongest bone in the body.
What lacks a paranasal sinus?
Identifying Bones Of The Skull : Example Question #2
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.
Does the zygomatic bone contain 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 are the 14 facial bones called?
The names of the 14 facial bones are: inferior nasal concha (2 of them,) lacrimal bones (2), mandible, maxilla (2), nasal bones (2), palatine bones (2), vomer, and zygomatic bones, or zygoma (2).