What is the 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 does the zygomatic bone 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 articulates with articular tubercle of temporal bone?
The temporomandibular joint (TMJ) is a hinge type synovial joint that connects the mandible to the rest of the skull. More specifically, it is an articulation between the mandibular fossa and articular tubercle of the temporal bone, and the condylar process of the mandible.
Is articular eminence and articular tubercle same?
INTRODUCTION. The articular eminence is that part of the temporal fossa over which the condyle-disk complex slides during the various mandibular movements. It is often confused with the articular tubercle, which is an entirely different structure.
What is the articulation of the mandible and the temporal bone called?
The temporomandibular joint (TMJ), or jaw joint, is a synovial joint that allows the complex movements necessary for life. It is the joint between condylar head of the mandible and the mandibular fossa of the temporal bone.
Is articular eminence the same as articular tubercle?
What surface articulates with the tubercle of a rib?
Tubercle of rib articulates with transverse costal facet, but is lacking in floating ribs.
Which of the following bones does not articulate with the zygomatic bone?
So, the correct answer is ‘Hyoid’
What are the parts 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 does articular eminence mean?
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.
What does articular fossa and eminence of temporal bone articulate with?
The temporal bone also articulates with the mandible at the temporomandibular joint . At this hinge joint, the rounded head of the mandible articulates with a socket formed by the mandibular fossa and the articular process of the temporal bone.
What part of the mandible articulates with the articular fossa of the temporal bone?
condyloid process
The condyloid process of the mandible articulates with the temporal bone of the skull at the mandibular fossa.
Which area of the mandible articulates with the temporal bone at the TMJ?
The condyle of the mandible articulates with the temporal bone in the mandibular fossa. The mandibular fossa is a concave depression in the squamous portion of the temporal bone. These two bones are actually separated by an articular disc, which divides the joint into two distinct compartments.
What is the function of the articular eminence?
What is the function of articular facet of tubercle of rib?
As in the typical ribs, the tubercle has a facet for articulation with the transverse process of vertebrae. The superior surface is unique in that it is marked by two grooves that allow passage of the subclavian vessels.
What two bones articulate with ribs?
Each rib articulates posteriorly with two thoracic vertebrae; by the costovertebral joint. An exception to this rule is that the first rib articulates with the first thoracic vertebra only.
What is the common name for 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.
Which muscle is superior and attaches to the zygomatic bone?
Zygomaticus major muscle
| Zygomaticus major | |
|---|---|
| Origin | anterior of zygomatic |
| Insertion | modiolus of the mouth |
| Artery | facial artery |
| Nerve | zygomatic and buccal branches of the facial nerve |
Is articular tubercle and Eminence the same?
The articular eminence is that part of the temporal fossa over which the condyle-disk complex slides during the various mandibular movements. It is often confused with the articular tubercle, which is an entirely different structure.
What is the purpose of the articular eminence?
Which of the following articulate in the mandibular fossa *?
Condylar process
Answer and Explanation: A) Condylar process articulates in the mandibular fossa.
What are the three zone of the articular disc?
The temporomandibular joint’s articular disc is a biconcave structure made up of fibrocartilage tissue; it can be divided into three different functional portions: posterior band, intermediate zone and anterior band [1,2,3].
What is the jaw joint called?
The temporomandibular (tem-puh-roe-man-DIB-u-lur) joint (TMJ) acts like a sliding hinge, connecting your jawbone to your skull. You have one joint on each side of your jaw.
What structure does the tubercle of a rib articulate?
transverse process
The rib tubercle articulates with the transverse process of a thoracic vertebra. The angle is the area of greatest rib curvature and forms the largest portion of the thoracic cage. The body (shaft) of a rib extends anteriorly and terminates at the attachment to its costal cartilage.