Maxilla anatomy. Maxilla: Anatomy, function and clinical notes 2023-01-02
The maxilla, also known as the upper jawbone, is a paired bone that forms the upper part of the facial skeleton in humans and other mammals. It is located between the mandible, or lower jawbone, and the forehead. The maxilla is a complex bone that plays a vital role in several key functions, including supporting the teeth, shaping the face, and facilitating speech and swallowing.
One of the main features of the maxilla is its multiple projections, which help to give the face its unique shape. The most prominent projection is the maxillary prominence, which is located on the midline of the face and forms the upper part of the nose. The maxilla also has two zygomatic processes, which extend outward and contribute to the formation of the cheekbones.
In addition to its role in shaping the face, the maxilla is also an important component of the dental arch. It contains sockets, or alveoli, that hold the upper teeth in place. The maxilla also has a central palatine process, which helps to form the roof of the mouth and separates the nasal cavity from the oral cavity.
Another important function of the maxilla is its role in speech and swallowing. The maxilla has several small bones called the palatine bones, which are connected to the tongue and help to shape the sounds of speech. The maxilla also has a soft palate, which helps to seal off the nasal cavity during swallowing to prevent food and liquids from entering the nasal passages.
Overall, the maxilla is a vital bone that plays a crucial role in several key functions, including shaping the face, supporting the teeth, and facilitating speech and swallowing. It is an intricate and complex bone that is essential to the proper functioning of the human body.
Maxilla: Bone Anatomy, Function, and Surgery Procedures
Embryologic formation — The histologic formation of the maxillary bones are notable in that they form not from two primordial processes but three. This fracture may transect the nasal bones, orbits, maxilla, and pterygoid plates. This branch runs upwards to enter the external acoustic meatus of the ear and the deep surface of the tympanic membrane. Her areas of interest include marine biology, ecology, genetics, and environmental science. Synonyms: Middle meningeal branch of maxillary artery, Arteria meningica media , The Â anterior tympanic artery is the second branch that courses near the tympanic membrane. The lower portion of the maxilla is connected to the upper teeth through the alveolar process.
It directly functions to support chewing, talking, and smiling. The stages of maxilla development are listed below. The information we provide is grounded on academic literature and peer-reviewed research. The body has several extensions referred to as processes. In a Le Fort fracture, the hard palette separates from the upper maxilla via transverse fracture. The maxilla is a paired facial bone in the lower mid-region of the mammalian skull.
It forms the upper jaw and articulates with the frontal, zygomatic, and palatine bones as well as the upper teeth. This canal ends with an opening on the anterior surface of the maxilla and serves as the passage for the infraorbital nerve and blood vessels, as mentioned before. An individual who experiences a maxillary fracture will likely experience pain, swelling, and bruising. It starts as a paired canal from the floor of the nasal cavity and unites with the palate in the uniform incisive fossa. These processes meet at the palatine suture. Your doctors will describe in detail the type of surgery you need, the procedures involved, recovery time, and follow-up.
Maxillary artery: Branches and anatomy
Very logically the processes forming the palate are known as the palatal processes. It passes upwards through the Branches from the 2nd pterygoid segment All branches from the pterygoid part supply only soft tissues. The two maxillary bones which combined are often just referred to as the maxilla is a complex bone that not only, as mentioned previously, forms most of the palate, but houses the upper teeth, contributes to the floor of the orbit, and forms much of the mid face. Instructor: hannah kemp Hannah is a graduate of DePaul University in Chicago, IL with a BS in Biological Sciences and a minor in Journalism. Because of the bone's location and proximity to important structures such as the airways, eyes, brain, and teeth, injuries to the maxilla can be serious. It forms the maxillary dental arch containing eight cavities where the upper teeth are held.
Maxilla: Anatomy, Function and Treatment
In the 7th week of fetal life one differentiates between the maxilla and premaxilla or incisive bone. The union of the left and right maxillary bones occurs by ossified sutures in the midline. The dental alveoli of the mandible house the roots of the lower teeth, while the dental alveoli of the maxilla - the upper teeth. Maxilla Development The maxilla develops through a series of states. Injuries to the maxilla may require fracture fixation or surgery, and can take months to recover from.
Maxilla Overview & Anatomy
Â It arises within the infraorbital canal where it descends to supply the The Â pharyngeal arteryÂ supplies structures such as the nose. This occurs at about 8 weeks in utero at a stage when bones have not yet developed. Kenhub does not provide medical advice. In the operating room, you will receive general anesthesia. You will wait in the preoperative area and meet with the surgeon and the anesthesiologist before going into surgery.
Maxilla: Anatomy, function and clinical notes
A Le Fort fracture occurs when the hard palette separates from the upper maxilla via a transverse fracture. It also articulates with the upper teeth. Bones take a long time to heal. They will continue to grow significantly for the next ten years. Lang: Clinical Anatomy of the Masticatory Apparatus and Peripharyngeal Spaces, Thieme 1995 , p. In the case of a bacterial infection, antibiotics are necessary. This could require assisted ventilation.
Maxillary sinus: Anatomy and structure
Resetting the maxilla may require surgery. The sinus cavities can become infected with bacteria or other germs like fungi. Maxilla Clinical Significance Due to the bone's size and positioning, injuries to the maxilla are fairly common during facial injuries. Lippincott Williams and Wilkins. Clinically oriented anatomy 8th ed. Synonyms: Pterygopalatine artery, Arteria pterygopalatina TheÂ descending palatine arteryÂ descends through the greater palatine canal with the greater and lesser palatine branches of the pterygopalatine ganglion.
Maxilla Anatomy Flashcards
Certain bacteria or immunosuppression may also contribute to the progress of this disease. You will be hooked up to an intravenous IV line. The formation of the maxilla begins via ''intramembranous ossification'', the direct ossification of mesenchyme to bone. You may also need to have multiple surgeries depending on your injuries. Crossing the inferior surface of the sphenoid, the sphenopalatine artery ends on the nasal septum giving off theÂ posterior septal branches. There are prominences in the bone where the tooth roots are.