What is the frontal process of maxilla?
The frontal process of maxilla is a strong plate, which projects upward, medialward, and backward from the maxilla, forming part of the lateral boundary of the nose. Cartilages of the nose.
Where is the frontal process located?
Description. In many species, the frontal process (Processus frontalis) emerges on the dorsal border of the zygomatic bone, caudally to the infra-orbital margin and contributes to delimitate the orbit.
What’s a 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 are the four processes of 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 does the frontal process articulate with?
Posteriorly, the frontal bone articulates with the two parietal bones (frontoparietal or coronal suture) and the greater wing of the sphenoid bone (sphenofrontal suture). Laterally, it articulates with the frontal processes of the zygomatic bones via its zygomatic processes forming the zygomaticofrontal suture.
What are the processes of the maxilla describe each?
Each maxilla has four processes (frontal, zygomatic, alveolar, and palatine) and helps form the orbit, roof of the mouth, and the lateral walls of the nasal cavity. Easily learn the bones of the body with these spaced repetition-style interactive anatomy quizzes.
What is frontal anatomy?
Frontal: In anatomy, pertaining to the forehead. As, for example, the frontal bone, frontal sinus, and frontal nerve. From the Latin “frons” meaning the forehead or brow.
Where is the maxillary process located?
It is specifically located in the mid face, forms the upper jaw, separates the nasal and oral cavities, and contains the maxillary sinuses (located on each side of the nose. One of the maxilla’s most important functions is to make up the architecture of our faces and to support the rest of the viscerocranium.
What is the process of frontal bone called?
Zygomatic process
The zygomatic processes project inferolaterally on each side of the frontal bone. They begin at the lateral aspect of the supraorbital margin and end at the zygomaticofrontal suture that connects the frontal bone and the frontal processes of the two zygomatic bones.
What are the holes in the maxilla called?
These are foramina – small holes that enable blood vessels and nerves to travel from skin to brain. To either side of the nasal cavity there are two much larger holes. These are the infraorbital foramina that create openings for the left and right branches of the infraorbital artery, vein, and nerve to pass through.
What muscle attaches to the frontal bone?
Muscles that attach to and surround the frontal bone are innervated by the facial nerve (CN VII). The most important of these are the orbicularis oculi, frontalis, and procerus muscles described under the next heading.
What three structures does the frontal bone have?
The structure of the frontal bone consists of three parts: squamous, orbital, and nasal. The squamous part of the frontal bone is the largest section.
What is the location of the maxilla bone?
upper jaw
The maxilla is the bone that forms your upper jaw. The right and left halves of the maxilla are irregularly shaped bones that fuse together in the middle of the skull, below the nose, in an area known as the intermaxillary suture. The maxilla is a major bone of the face.
How many process are in frontal bone?
The nasal plate articulates with the two nasal bones (frontonasal suture) and two frontal processes of each maxilla (frontomaxillary suture).
What muscles are attached to the maxilla?
The maxilla serves as a site of origin/insertion of many muscle groups including muscles of facial expression, muscles of the velar complex, and the inferior oblique muscle, together with some fibers of origin of the lateral and medical pterygoid muscles. The maxilla has a rich neurovascular supply.
Is there 2 maxilla bones?
The two maxillary bones are fused at the intermaxillary suture, forming the anterior nasal spine. This is similar to the mandible (lower jaw), which is also a fusion of two mandibular bones at the mandibular symphysis.
What muscle attaches to frontal bone?
The frontalis muscles are two large anterior bilateral anterior muscles that control the movement of the forehead in facial expression. The procerus muscles are two muscles located superiorly and medially to the orbit, and lateral to the glabella.
What type of bone is maxilla?
The answer to the question, “What type of bone is the maxilla bone?” is simple – it is an irregular facial bone. You can refer to the maxilla bone as a single unit or as two paired but fused bones.
What is the bone called that holds your upper teeth?
maxilla
Your jaw is a set of bones that holds your teeth. It consists of two main parts. The upper part is the maxilla.
What are the 14 facial bone?
Each facial bone has its own unique anatomy, characteristics, and functions. The names of the 14 facial bones are: inferior nasal concha (2 of them,) lacrimal bones (2), mandible, maxilla (2), nasal bones (2), palatine bones (2), vomer, and zygomatic bones, or zygoma (2).
What is frontal bone anatomy?
The frontal bone is a bone in the human skull. The bone consists of two portions. These are the vertically oriented squamous part, and the horizontally oriented orbital part, making up the bony part of the forehead, part of the bony orbital cavity holding the eye, and part of the bony part of the nose respectively.
What muscles are in the maxilla?
What is the smallest bone in the face?
Lacrimal bone
The lacrimal bone is perhaps the most fragile bone of the face and one of the smallest bones in the body. Spanning between the middle of each eye socket, each lacrimal is thin and scalelike and serves as support for the eye.
What is the largest facial bone?
The mandible
The mandible is the largest and strongest of the facial bones. It consists of a basal bone and three processes. The basal bone extends from the symphysis at the chin to the lateral condyles on each side.
What type of bone is the frontal bone?
flat bone
The frontal bone is classified as a flat bone due to its relatively thin and flat shape. Like all flat bones, the frontal bone has spongy bone in its center, surrounded by a thin layer of compact bone on its inner and outer surfaces.