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 two bones are joined by the zygomatic process?
Articulations. The zygomatic bone articulates with the frontal bone, sphenoid bone, and paired temporal bones, and maxillary bones.
Which bones form the zygomatic arch?
The facial area includes the zygomatic, or malar, bones (cheekbones), which join with the temporal and maxillary bones to form the zygomatic arch below the eye socket; the palatine bone; and the maxillary, or upper jaw, bones.
What is a zygomatic process?
Medical Definition of zygomatic process : any of several bony processes that articulate with the zygomatic bone: as. a : a long slender process of the temporal bone helping to form the zygomatic arch. b : a narrow process of the frontal bone articulating with the zygomatic bone.Is zygomatic a cranial 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.
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.
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 is the zygomatic bone function?
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 many zygomatic bones are there?
There are three zygomatic processes: Zygomatic process of the frontal bone. Zygomatic process of the temporal bone.
What bony process creates the cheekbone?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 …
Article first time published onWhat is a bone process?
bone formation, also called ossification, process by which new bone is produced. … The process takes two general forms, one for compact bone, which makes up roughly 80 percent of the skeleton, and the other for cancellous bone, including parts of the skull, the shoulder blades, and the ends of the long bones.
Why is it called zygomatic process?
Specifically, it is the main protrusion of bone that forms the prominence of the upper cheek, the cheekbone. This process is called the zygomatic process because the zygomatic bone forms the majority of it, but the maxilla, temporal and frontal bones also contribute to the protrusion.
Is the sphenoid bone paired?
The sphenoid is an unpaired bone. It sits anteriorly in the cranium, and contributes to the middle cranial fossa, the lateral wall of the skull, and the floor and sides of both orbits. It has articulations with twelve other bones: Unpaired bones – Occipital, vomer, ethmoid and frontal bones.
Is the zygomatic process the same as the zygomatic arch?
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.
Which bones are connected by the squamous suture?
The squamous suture connects the parietal bones, which form part of the side and top of the skull, to the temporal bones, which form part of the side and the bottom of the skull.
Is the zygomatic bone part of the axial skeleton?
The 14 facial bones are the nasal bones, the maxillary bones, zygomatic bones, palatine, vomer, lacrimal bones, the inferior nasal conchae, and the mandible. … Although it is not found in the skull, the hyoid bone is considered a component of the axial skeleton.
What is nose bone?
The nasal bones are two oblong halves that meet to form the bridge of your nose. … The nasal bones along with the frontal processes of the maxilla make up one of three nasal vaults, known as the bony vault.
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).
Which bone is anterior to the temporal bone?
The squamous part of the temporal bone also articulates with the sphenoid bone anteriorly and the parietal bone laterally. The zygomatic process of the temporal bone also articulates with the zygomatic bone to form the zygomatic arch (i.e. cheekbones).
What type of bone is 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.
Where is squamous part of temporal bone?
The squamous part is the anterior superior portion of the temporal bone that forms the lateral part of the middle cranial fossa. It has the appearance of a large flattened plate. Its external surface is smooth and slightly convex.
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.
Is the ethmoid bone a facial bone?
Elements of the cartilaginous viscerocranium (i.e., splanchnocranial elements), such as the hyoid bone, are sometimes considered part of the facial skeleton. The ethmoid bone (or a part of it) and also the sphenoid bone are sometimes included, but otherwise considered part of the neurocranium.
Which skull bone has a notch?
Internal surface. The internal surface of the frontal bone is concave anteriorly, with grooves laterally for the middle meningeal vessels. The floor of the internal surface forms the floor of the anterior cranial fossa. It has a midline dehiscence termed the ethmoid notch that articulates with the ethmoid bone.
What is a ethmoid bone?
The ethmoid bone is an unpaired cranial bone that is a significant component of the upper nasal cavity and the nasal septum. The ethmoid bone also constitutes the medial orbit wall.
Which bone contains the mandibular fossa?
Each mandibular fossa or glenoid fossa forms the temporal component of the TMJ. It is a concave area on the inferior border of the squamous part of the temporal bone that is also referred to as the articular fossa.
What is the name of the jaw bone?
It consists of two main parts. The upper part is the maxilla. It doesn’t move. The moveable lower part is called the mandible.
How is zygomatic arch formed?
The zygomatic arch (cheek bone) is formed by the zygomatic process of temporal bone and the temporal process of the zygomatic bone, the two being united by an oblique suture (zygomaticotemporal suture).
What bones have a process?
The mastoid and styloid processes of the temporal bone. The zygomatic process of the temporal bone. The zygomatic process of the frontal bone. The orbital, temporal, lateral, frontal, and maxillary processes of the zygomatic bone.
Which bone has a trochanter quizlet?
The femoral head (femur head or head of the femur) is the highest part of the thigh bone (femur). It is supported by the femoral neck. The greater trochanter (great trochanter) of the femur is a large, irregular, quadrilateral eminence and a part of the skeletal system.
Is Fossa a bone process?
Fossa – A shallow depression in the bone surface. Here it may receive another articulating bone or act to support brain structures. Examples include trochlear fossa, posterior, middle, and anterior cranial fossa.
