![]() ![]() It contains the large foramen magnum, the occipital condyles for articulation with the atlas, and nuchal lines (superior and inferior) and the external occipital protuberance for muscle and nuchal ligament attachments. (Image courtesy of AL Rhoton, Jr. Medial to this notch is the occipital groove for the occipital artery. The occipital bone forms the posterior aspect of the skull. The zygomatic arch is formed by the union of the temporal process of the zygomatic bone and the zygomatic process of the temporal bone at the zygomaticotemporal suture. The mastoid notch is located on the medial surface of the mastoid for attachment of the posterior digastric muscle. The temporal fossa is bounded superiorly and posteriorly by the superior and inferior temporal lines, anteriorly by the frontal and zygomatic bones, and. It is continuous with the orbital surface of the bone posteriorly. Posterior to this fossa are the styloid and mastoid processes with the stylomastoid foramen between them for exit of the facial nerve. This processs inferior margin is involved in the junction with the maxilla. Behind the root of the zygomatic arch is the mandibular fossa for articulation with the mandibular condyles. Additional support comes from the anterior maxillary wall and. ![]() The petrous bone contains the opening of the carotid canal and posterior to its external opening is the jugular foramen, a space between the petrous bone and occipital bone. The underlying bony support in this region is mainly the malar bone and the zygomatic arch. Its floor is filled in life by fibrocartilage. The foramen lacerum is a space bounded by the apex of the petrous temporal bone, the greater wing of the sphenoid, and the clivus. Lateral to it are the choanae passageways connecting the nasal cavity with the nasopharynx. RF 2JKWR41Inferior view of the human skull with the upper jaw. It is the posterior border of the nasal septum. Find the perfect zygomatic arch stock photo, image, vector, illustration or 360 image. The vomer is a midline bone that attaches from the inferior surface of the body of the sphenoid to the superior surface of the hard palate. The infratemporal fossa is continuous with the temporal fossa superiorly through the space between the zygomatic arch and lateral skull. The infratemporal fossa is continuous with the temporal fossa superiorly through the space between the zygomatic arch and lateral skull. The undersurface of the greater wing of the sphenoid forms the roof of this fossa and contains the foramen ovale and spinosum. The pterygoid processes of the sphenoid are located posterior to the dental arch and form the medial boundary of the infratemporal fossa. These transmit the neurovascular supply to the hard palate. Medial to the maxillary molar teeth is the greater palatine foramen. It also forms the principal part of the hard palate (the horizontal part of the palatine bone forms the posterior border of the hard palate). Behind the central incisors is the incisive foramen. The orbits are seen less well, but zygomatic arches and the walls of the maxillary antra are seen clearly.Inferior view of skull base. The maxilla is the central bone of the face and contains the largest paranasal sinus, the maxillary sinus. The occipito-mental 30 o view shows 30 o of caudal angulation. The space inferior to the zygomatic arch and deep to the posterior mandible is the infratemporal fossa. border of maxillary at the most anterior curvature of zygomatic arch 9. The occipito-mental view demonstrates the upper and middle thirds of the face including the orbital margins, frontal sinuses, zygomatic arches and maxillary antra A, Dorsal view: 1, frontal tip of internasal suture 2, sagittal suture between. From the inferior aspect the process has a pronounced lateral convexity and the lower part acts as the site of origin of the masseter muscle. There are two views – occipito-mental view and occipito-mental 30 o view At the anterolateral aspect of this view, we can find the zygomatic Arch, which is a plate of narrow bone that is formed by the zygomatic process of the temporal bone and the zygomatic bone itself. ![]()
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