What does zygomatic bone mean?
The zygomatic bone is a paired facial bone. Both zygoma or cheek bones are irregular and articulate with other bones of the cranium and face. They are important contributors to mastication or chewing, providing an attachment point for the masseter muscle – a jaw adductor that closes the jaw.
What is the temporal process of zygomatic bone?
What is temporal process? : a process of the zygomatic bone that with the zygomatic process of the temporal bone with which it articulates laterally forms part of the zygomatic arch. What is temporal in science? temporal. (Science: anatomy) Of or pertaining to the temple or temples; as, the temporal bone; a temporal artery.
What is the function of zygomatic major?
Zygomaticus major
- Origin. The zygomaticus major muscle arises from the lateral surface of the zygomatic bone. ...
- Insertion. The zygomaticus major inserts into the skin at the angle of the mouth, blending with the fibers of the levator anguli oris, orbicularis oris and more deeply placed muscles.
- Action. ...
- Innervation. ...
- Blood supply. ...
- Cheek dimples. ...
Does zygomatic contain sinuses?
The temporal bone does not contain a sinus. Does the zygomatic bone have a sinus? It contains the largest of the paranasal sinuses, the maxillary sinus. The hollow space is the frontal sinus, one of the paranasal sinuses, which we’ll look at shortly. Next we’ll look at the zygomatic bone. The zygomatic bone forms the bony prominence of the cheek.
What's the zygomatic bone?
The zygomatic bones are a pair of diamond-shaped, irregularly-shaped bones that protrude laterally and form the prominence of the cheeks, a portion of the lateral wall, the orbit floor, and some portions of the temporal fossa and infratemporal fossa.
What is the importance of zygomatic arch?
The zygomatic arch plays a critical role in the mammalian masticatory system. Formed by the union of the zygomatic process of the temporal bone and the temporal process of the zygomatic bone, it is from this beam-like structure that the masseter muscle, a major jaw adductor, originates.
Is the zygomatic bone a facial bone?
The zygomatic bones (Gr., zygoma – yoke) are two facial bones that form the cheeks and the lateral walls of the orbits. They are also commonly referred to a as the cheekbones or malar bones (L., mala – the cheek). Each zygomatic bone articulates with the temporal bone, frontal bone, maxilla, and sphenoid bones.
What do the zygomatic bones form?
Each process of the zygomatic bone forms important structures of the skull. The orbital surface of the frontal process of the zygomatic bone forms the anterior lateral orbital wall, with usually a small paired foramen, the zygomaticofacial foramen opening on its lateral surface.
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.
Where is 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 the 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 do you remember the zygomatic bone?
0:577:07Skull Bones Mnemonic (Cranial and Facial Bones) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo clever forehead.MoreSo clever forehead.
Can you feel zygomatic bone?
Zygomatic bone location can easily be felt as it forms the ridge above the fleshy area of the cheeks, along the outer rim of the eyes. If you run your fingers along either ridge from the side of the nose, the first part you feel is the lower rim of the eye socket.
What are the two processes of zygomatic bone?
The zygomatic bone itself has four processes, namely the frontosphenoidal, orbital, maxillary and temporal processes. The frontosphenoidal process is thick and serrated. The cranial suture between the frontal and zygomatic bone is found here.
Is the zygomatic bone strong?
The zygomatic buttress as such is a strong, thick bone but the multiple sites of articulation with adjacent facial bones are vulnerable to external forces.
What does the zygomatic bone articulate with?
Definition. 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 zygomatic arch in anatomy?
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.
How does the zygomatic arch relate to dentistry?
How do Zygomatic dental implants work? Zygomatic implants are longer than normal and are placed into your cheekbone, which is called the zygomatic arch. This provides a stronger and more secure foundation for the All-on-4 procedure if you have insufficient bone density at the front of your jaw.
What does large zygomatic arch mean?
The size of the zygomatic arch in relation to the rest of the skull is related to the size of the muscle that attaches to it. Therefore, a larger zygomatic arch hints that the muscle that used to attach to the skull was quite large, compared to the muscle that attached to Skull 2.
Do humans have a zygomatic arch?
Zygomatic arches Large, muscular jaws require large arches for attachment. Animals that use their jaws for defense or that eat tough foods requiring heavy chewing need large, muscular jaws. Of the hominids, humans have the most petite jaws and also the smallest zygomatic arches (visible in the right-hand photo below).
What is the zygomatic bone?
The zygomatic bone (zygoma) is an irregularly shaped bone of the skull. It is often referred to as the cheekbone, and it comprises the prominence just below the lateral side of the orbit. The zygomatic bone is nearly quadrangular in shape and it features three surfaces, five borders and two processes. Besides forming the prominence of the cheek, ...
What bone forms the zygomatic arch?
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. This article will discuss the anatomy and function of the zygomatic bone. Key facts about the zygomatic bone.
What are the three 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. This foramen transmits the zygomaticofacial nerve, artery and vein between the orbit and the face.
What is the border between the lateral and orbital surfaces of the zygomatic bone?
It is the border between the lateral and orbital surfaces of the zygomatic bone. The anteroinferior (maxillary) border is the articular surface for the zygomaticomaxillary suture. It also serves as an attachment site for the levator labii superioris muscle.
Which surface faces the temporal and infratemporal fossae?
The posteromedial (temporal) surface faces towards the temporal and infratemporal fossae. Its anteriormost portion is rough and serves for the articulation with the zygomatic (malar) process of maxilla via the zygomaticomaxillary suture. The posteromedial surface spreads over the medial side of the temporal process, comprising a part of the lateral wall of the infratemporal fossa. Near the base of the frontal process, the posteromedial surface features the zygomaticotemporal foramen which transmits the zygomaticotemporal nerve from the orbit to the temporal fossa.
Which border is serrated and articulates with the greater wing of sphenoid bone superiorly via?
The posteroinferior border is rough and serves as the attachment site for the masseter muscle. The posteromedial border is serrated and articulates with the greater wing of sphenoid bone superiorly via the sphenozygomatic suture, and with the orbital surface of maxilla inferiorly.
Where does the maxillary process occur?
The maxillary process arises from the anterosuperior angle of the zygomatic bone. It extends anteriorly, comprising the inferolateral margin of the orbit. The inferior margin of this process participates in the joint with the maxilla. Posteriorly, it is continuous with the orbital surface of the bone.
What is the function of zygomatic bone?
Zygomatic bone anatomy is not over-complex; its main function is to provide structure and strength to the mid-face. The cheekbones have three surfaces, four processes, three foramina, and three articulations. Processes are projecting pieces of bone that insert into other bones.
What is the zygomatic bone?
The zygomatic bone is a paired facial bone. Both zygoma or cheek bones are irregular and articulate with other bones of the cranium and face. They are important contributors to mastication or chewing, providing an attachment point for the masseter muscle – a jaw adductor that closes the jaw.
Where is the Zygomatic Bone Located?
Zygomatic bone location can easily be felt as it forms the ridge above the fleshy area of the cheeks, along the outer rim of the eyes .
What is the lateral surface of the zygoma?
From a lateral view, the zygoma are rectangular in form. The lateral surface provides a point of attachment for the zygomaticus major and minor muscles.
How many processes are there in the zygomatic bone?
There are four processes of the zygomatic bone, but these are not zygomatic processes! A process is named after the bone it meets with. In the zygoma, these four processes are the: Orbital process of the zygomatic bone. Maxillary process of the zygomatic bone. Temporal process of the zygomatic bone.
Which process of the cheekbone forms the zygomatic arch?
Together with the temporal process of the cheekbone, the zygomatic process of the temporal bone forms the zygomatic arch. This arch surrounds a large hollow that allows the temporal and masseter muscles to pass through to the lower jaw. It is this arch that gives the mid-face its shape.
Where are zygomatic processes found?
Zygomatic processes, however, are found on other bones that extend into the zygoma. 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) Zygomatic process of the maxilla bone.
What is the Zygomatic Bone
Zygomatic bone, commonly known as the cheekbone, is a paired, irregular facial bone. It is sometimes known as ‘zygoma’, a Greek word meaning ‘yoke’. This bone forms the cheeks and the lateral walls of the eye sockets or orbits.
Where is the Zygomatic Bone Located
It is located at the upper and lateral part of the face and can be felt from outside at the prominence of the cheekbones. More specifically, it is positioned just below each eye, extending upward to the outer side of each eye and downward near the jaw. You can easily feel the bone by touching the ridge above the fleshy area of the cheeks.
Functions
It provides structure and strength to the mid-face, forming the cheek.
Anatomy of the Zygomatic Bone
The bone is nearly quadrangular in shape, featuring three surfaces, five borders, and four processes.
Muscle and Ligament Attachments
Zygomaticus major and zygomaticus minor: These paired zygomaticus muscles attach to the lateral surface of the bone. They bring the upper lips upward and out, thus helping us to smile.
Ossification and Development
The bone ossifies around the eighth week of fetal life, which appears lateral and just beneath the orbit.
What is the function of the zygomatic bone?from verywellhealth.com
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. The zygomatic bone itself has no ability to move, ...
Where is the Zygomatic Bone Located?from biologydictionary.net
Zygomatic bone location can easily be felt as it forms the ridge above the fleshy area of the cheeks, along the outer rim of the eyes .
What is the channel between the zygomatico orbital foramen and the two other foramina?from biologydictionary.net
The channel that starts at the zygomatico-orbital foramen and splits to exit from the zygomaticofacial and zygomaticotemporal foramina is called the zygomatic canal.
What bone forms the zygomatic arch?from kenhub.com
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. This article will discuss the anatomy and function of the zygomatic bone. Key facts about the zygomatic bone.
How to diagnose zygomatic fracture?from verywellhealth.com
Fractures to the zygomatic bone are diagnosed through an X-ray. Patients are instructed not to blow their nose or perform any large facial movements which may cause pain or further disturb the fracture. 5 Depending on the severity of the fracture, the zygomatic bone may be monitored through home health and treated with antibiotics to prevent or treat infection.
Why is the front part of the zygomatic bone thick?from verywellhealth.com
The front portion of the bone is thick and jagged to allow for its joining with other bones of the face. This thickness also allows the bone to remain strong and sturdy to protect the more delicate features of the face. Other portions of the zygomatic bone include joints near the jaw, near the ears, and near the forehead and skull.
What is the zygomatic process of the maxilla?from biologydictionary.net
Zygomatic process of the maxilla bone (or malar process of the maxilla bone) Zygomatic process of the maxilla bone. Together with the temporal process of the cheekbone, the zygomatic process of the temporal bone forms the zygomatic arch.
Which cartilage develops into the shape of the future bone?
A) Hyaline cartilage develops into the shape of the future bone.
Does an epiphyseal plate exist between the two formed ossification centers?
C) No epiphyseal plate will exist between the two formed ossification centers.
