What is articular tubercle?

The articular tubercle (eminentia articularis) is a bony eminence on the temporal bone in the skull.

What does the articular tubercle articulate with?

At typical thoracic levels, the head of the rib articulates with the intervertebral disc and demifacets on the edges of the vertebrae that bind that disc, and the articular tubercle of the rib articulates with the transverse process of the upper of the two vertebrae (Fig. 32.15).

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 bones articulate with the zygomatic bones?

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 purpose of articular tubercle?

Then there is the articular tubercle, where some ligaments laterally attach to the TMJ, and the condyle moves over it when the jaw opens. Simply put, this means that the AE controls how far your jaw (or mandible) can open.

What is the function of the articular eminence?

The articular eminence is a part of the temporal bone on which the condylar process slides during mandibular movements. The inclination of articular eminence varies among people and it dictates the path of condylar movement as well as the degree of rotation of the disc over the condyle [2, 3].

What nerves are affected by TMJ?

The TMJ is closely associated with the trigeminal nerve, which innervates approximately 40 percent of the head and face. This nerve has three branches and is involved with the following functions: Chewing functions of upper and lower jaw.

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. …

Why is 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.

Why does my zygomatic bone hurt?

Zygomatic arch pain is commonly reported by patients visiting the orofacial pain clinic and is majorly accepted to be caused by masseter muscle pain. But a variety of conditions may present as orofacial pain in the zygomatic arch region, including life-threatening diseases such as salivary gland tumors.

Why is the zygomatic bone important?

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.

Where is zygomatic process?

temporal bone
The zygomatic process is a long arched process, projecting from the lower part of the squamous part of temporal bone.