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 is the zygomatic bone part of?
Zygomatic bone | |
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Side view of the teeth and jaws (zygomatic visible in center) | |
Details | |
Part of | Skull |
Identifiers |
Why is it called zygomatic?
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 does the zygomatic bone attach to?
It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit. It forms the central part of the zygomatic arch by its attachments to the maxilla in front and to the zygomatic process of the temporal bone at the side.
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 are the 3 surfaces 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 are the processes of the Zygoma?
The three processes are: Zygomatic process of frontal bone from the frontal bone. Zygomatic process of maxilla from the maxilla (malar process) Zygomatic process of temporal bone from the temporal bone.
How many zygomatic bones do we have?
There are three zygomatic processes: Zygomatic process of the frontal bone. Zygomatic process of the temporal bone. Zygomatic process of the maxilla bone (or malar process of the maxilla bone)
How can you tell if you have high cheekbones?
If your cheekbone is at the lower part of your nose, you have low cheekbones. If it’s directly underneath your eyes, close to where the bridge of your nose begins, you have high cheekbones.
What is Zygomaticus major?
Of all the muscles in the face, the zygomaticus major is perhaps the most noticeable. Sitting between the corners of our lips and the upper part of our cheeks, it controls the way in which we smile. The muscle sits atop the zygomatic bone, otherwise known as the cheekbone.
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.
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 bone is the upper jaw?
The lower jaw (mandible) supports the bottom row of teeth and gives shape to the lower face and chin. This is the bone that moves as the mouth opens and closes. The upper jaw (maxilla) holds the upper teeth, shapes the middle of the face, and supports the nose.
What is the bridge of the nose bone called?
The nasal bones are two oblong halves that meet to form the bridge of your nose. The nasofrontal suture, which is a rigid fibrous joint that connects the two halves of the nasal bones, forms the thickest part of the nose.
What bones make lower jaw?
The mandible is the largest bone in the human skull. It holds the lower teeth in place, it assists in mastication and forms the lower jawline. The mandible is composed of the body and the ramus and is located inferior to the maxilla. The body is a horizontally curved portion that creates the lower jawline.
How do you fix a zygomatic fracture?
Most zygomatic complex fractures can be treated solely by an intraoral approach and rigid fixation at the zygomaticomaxillary buttress. Further exposure of the zygomaticofrontal junction or inferior orbital rim is necessary for severely displaced fractures, which require additional fixation.
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.
What 2 bones make up the zygomatic arch?
The cranial portion of the zygomatic arch is formed by the zygomatic bone, and the caudal portion is formed by the zygomatic process of the temporal bone. The zygomatic arch forms the ventral and lateral rim of the orbit.
Which suture joins the maxillary bones?
The zygomaticomaxillary suture links the zygoma and the maxilla. The two maxillary bones are anteriorly connected by the intermaxillary joint.
What is zygomatic arch?
zygomatic arch, bridge of bone extending from the temporal bone at the side of the head around to the maxilla (upper jawbone) in front and including the zygomatic (cheek) bone as a major portion. … The zygomatic arch is particularly large and robust in herbivorous animals, including baboons and apes.
What is the root of Zygoma?
The zygomatic process of the temporal arises by two roots: an anterior, directed inward in front of the mandibular fossa, where it expands to form the articular tubercle. a posterior, which runs backward above the external acoustic meatus and is continuous with the supramastoid crest.
What is the difference between zygomatic arch and zygomatic process?
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 bones does the zygomatic bones articulate with?
The zygomatic bone articulates with the sphenoid bone, maxilla, frontal bone, and temporal bone to form the lateral wall of the floor of the orbit, part of the temporal and infratemporal fossa, and the prominence of the cheek.
What is the function of maxilla?
Your maxilla is a crucial bone in your skull’s structure and enables many basic functions, such as chewing and smiling. If it’s fractured, it can affect many other important bones around it and keep you from accomplishing even simple daily tasks.
What bones make up the cheeks?
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.
Who has the best cheekbones in the world?
- Keira Knightley. …
- Cara Delevingne. …
- Angelina Jolie. …
- Naomi Campbell. …
- Natalie Portman. …
- Gisele Bündchen. …
- Michelle Pfeiffer. …
- Halle Berry.
Which face shape has best jawline?
“A strong jawline usually means you have a square or rectangle face shape. If your jawline comes to a point then you have a heart-shaped face,” Oquendo said. Finally, check out the length of your face. Rounder faces are typically on the shorter side and oval faces are usually on the longer side.
What ethnic group has high cheekbones?
Those of Asian ancestry have wider and shorter faces with prominent cheekbones whilst individuals of African descent have a wide nasal cavity and a prominent mouth region when viewed in profile.
Where is the Triangularis?
Muscles of the head, face, and neck (labeled as triangularis near chin). The depressor anguli oris muscle (triangularis muscle) is a facial muscle. It originates from the mandible and inserts into the angle of the mouth. It is associated with frowning, as it depresses the corner of the mouth.
Where are the Frontalis?
Generally, the frontalis inserts at the eyebrow dermis and terminates laterally at the temporal ridge, but there is some variance and occasionally may terminate more medially as well. [10][11] While overall, it is a thin muscle with high vascularity, the bulk of it is located right above the brow.
How do you strengthen zygomaticus muscles?
Lip pucker
This exercise helps to firm the muscles controlling the lip movements. Pucker the lips into a whistling or kissing position. Hold the pose for a five count before repeating for a total of 10 repetitions.
Do skulls have ear holes?
Yes, all mammals and probably all animals have a hole in the skull where the ears are. The ears are on the outside of the skull and the eardrum is still outside the majority of the skull. Since that is where the sound is detected, there has to be a hole for nerves going from the eardrum area to the brain.
What is a Inion?
Definition of inion
: the external occipital protuberance of the skull.
Which bone is most superior?
Anatomical terms of bone
In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire head.
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.
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.
What are the two bones that your outer nose is connected to?
External Nasal Skeleton
It is partly formed by the nasal and maxillary bones, which are situated superiorly. The inferior portion of the nose is made up of hyaline cartilages; lateral, major alar, minor alar, and the cartilaginous septum.
What bones hold your teeth?
The alveolar bone is located on the jaw bones which hold the teeth. In humans, these bones that contain the teeth are the maxilla and the mandible. The curved portion of each alveolar process on the jaw is the alveolar arch.
Are your teeth in your jaw bone?
Jaw bone. The jaw bone, also called the alveolar bone, is the bone that contains the tooth sockets and surrounds the teeth’s roots; it holds the teeth in place.
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.