What is frontal process?
Medical Definition of frontal process 1 : a long plate that is part of the maxillary bone and contributes to the formation of the lateral part of the nose and of the nasal cavity. — called also nasal process.
What does the frontal process of the maxilla articulate with medially?
The infraorbital rim extends medially and upward to form the frontal process of the maxilla. The frontal process articulates superiorly with the frontal bone, medially with the nasal bone, and posteriorly with the lacrimal bone. It has a smooth orbital surface that forms the vertical anterior lacrimal crest.
How is maxilla formed?
The maxilla (plural: maxillae /mækˈsɪliː/) in vertebrates is the upper fixed (not fixed in Neopterygii) bone of the jaw formed from the fusion of two maxillary bones. In humans, the upper jaw includes the hard palate in the front of the mouth.
What is the main function of the maxilla?
Your maxilla is a crucial bone in your skull’s structure and enables many basic functions, such as chewing and smiling. If it’s fractured, it can affect many other important bones around it and keep you from accomplishing even simple daily tasks.
What is the frontal process of zygomatic bone?
Frontal process of zygomatic bone The frontal process features a bony tubercle on its orbital surface called the Whitnall’s tubercle, which serves as an attachment site for the lateral palpebral ligament, suspensory ligament of the eye, and the aponeurosis of levator palpebrae superioris muscle.
Where is the zygomatic process of frontal bone?
Zygomatic process of frontal bone The supraorbital margin of the frontal bone ends laterally in its zygomatic process, which is strong and prominent, and articulates with the zygomatic bone. The zygomatic process of the frontal bone extends from the frontal bone laterally and inferiorly.
What is the maxilla paired with?
The maxillary bone, often referred to simply as the maxilla (plural = maxillae), is one of a pair that together form the upper jaw, much of the hard palate, the medial floor of the orbit, and the lateral base of the nose (see Figure 6.18). On the anterior maxilla, just below the orbit, is the infraorbital foramen.
What are the four processes of the maxilla?
[3] The maxilla connects with surrounding facial structures through four processes: alveolar, frontal, zygomatic and palatine. It articulates superiorly with the frontal bone, the zygomatic bone laterally, palatine bone posteriorly and with the upper teeth through the alveolar process inferiorly.
What landmark is formed by maxilla?
Anatomic Landmarks in the Maxilla and Mandible Lucent structures of the maxillary bone include the palatine fissures, incisive canal, infraorbital foramen, and infraorbital canal.
Does the maxilla articulate with the frontal bone?
Structure and Function [3] The maxilla connects with surrounding facial structures through four processes: alveolar, frontal, zygomatic and palatine. It articulates superiorly with the frontal bone, the zygomatic bone laterally, palatine bone posteriorly and with the upper teeth through the alveolar process inferiorly.
How is maxilla called cavity of the body?
The body is somewhat pyramidal in shape, and contains a large cavity, the maxillary sinus (antrum of Highmore).
What makes up the maxilla and Zygoma?
In the human skull, the zygomatic bone (cheekbone or malar bone) is a paired irregular bone which articulates with the maxilla, the temporal bone, the sphenoid bone and the frontal bone….
| Zygomatic bone | |
|---|---|
| Latin | os zygomaticum, zygoma |
| TA98 | A02.1.14.001 A02.1.14.005 |
| TA2 | 818 |
| FMA | 52747 |