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 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 process and arch the same thing?

Zygomatic Arch Definition 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. The zygomatic arch is seen in all synapsid animals, which have a single temporal fenestra or hole in the temporal bone.

When does zygomatic process occur?

The zygomatic bone is generally described as ossifying from three centers—one for the malar and two for the orbital portion; these appear about the eighth week and fuse about the fifth month of fetal life.

What is zygomatic arch function?

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 a zygomatic arch fracture?

Zygomatic arch fractures After the nasal bone, the zygoma is the second most common bone of the face to be fractured. The group at highest risk is young males. Aetiology is usually blunt trauma to the cheek, such as involved in: Assault. Road traffic accidents.

Why is the zygomatic arch important?

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.

What is the function of the zygomatic arch?

What is the zygomatic arch and how is it formed?

The zygomatic arch is formed by the union of the temporal process of the zygomatic bone and the zygomatic process of the temporal bone at the zygomaticotemporal suture.

Where is the 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.

How does the mastoid process work?

The mastoid bone, which is full of these air cells, is part of the temporal bone of the skull. The mastoid air cells are thought to protect the delicate structures of the ear, regulate ear pressure and possibly protect the temporal bone during trauma.

What are processes form the zygomatic arch?

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. The two extensions effectively make a tunnel of bone through which muscle and tendon can pass.

What does zygomatic process mean?

Each Zygomatic process is the part of a bone which articulates with the zygomatic bone. The three processes are: The zygomatic process is occasionally referred to as the zygoma, but this term usually refers to the zygomatic bone or occasionally the zygomatic arch.

What does zygomatic arch mean?

zygomatic arch – the slender arch formed by the temporal process of the cheekbone that bridges to the zygomatic process of the temporal bone.

What is the plural of zygomatic process?

zygomatic process ( plural zygomatic processes ) ( anatomy) A protrusion from the rest of the skull, most of it belonging to the zygomatic bone, but also contributed to by the frontal bone, maxilla and temporal bone.