The cranial bones are connected by fibrous joints called sutures. 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. This foramen transmits the zygomaticofacial nerve, artery and vein between the orbit and the face. t) Zygomatic bone, frontal process (frontozygomatic suture). The former transmits the zygomaticotemporal, the latter the zygomaticofacial nerve.. References. b. foramen. Each maxilla attaches laterally to the zygomatic bones (cheek bones). The zygomatic bones also contain the system of canals for the branches of the zygomatic nerve. Zygomatic bone. -- Select -- Coronal suture Ethmoid bone Frontal bone Lacrimal bone Mandible Maxilla Nasal bone Parietal bone Sphenoid bone Styloid Process Supraorbital Foramen Temporal bone Vomer bone Zygomatic bone None of the above. The greater wings of the sphenoid contain several foramina. B) lesser wings of the sphenoid bone. Question: 5. nasal aperture 10. middle nasal concha 11. inferior nasal concha 12. perpendicular plate 13. infera orbital foramen 14. oblique line 15. zygomatic process 16. frontal process 17. alveolar process 18. supercillary arch Your Answer. The malar surface is convex and perforated near its center by a small aperture, the zygomaticofacial foramen, for the passage of the zygomaticofacial nerve … It is a very long and strongly curved bone in a dog. Hint 1. Zygomatic bone Maxilla Mandible Infraorbital foramen Mental foramen a Anterior from INTEGBI 131 at University of California, Berkeley It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit. Results: Variable number of ZO and ZF foramina, ranging from 0 to 4 was seen. Mandibular fossa Located on the inferior surface of the zygomatic process; receives the condylar process of the mandible to form the temporomandibular joint. zygomaticofacial foramen - opening on anterior surface of zygomatic bone. These were absent in 72 (21.8%) sides. Foramen Parietal Bone Zygomatic Bone Temporal Bone Mandibular Condyle Zygomatic Process Coronoid Process Styloid Process Mental Foramen . A part of the lateral wall and floor of the Orbital surface. The zygomatic bone is composed of the following 3 parts: A body; 2 processes: frontal and temporal. The paired zygomatic bones (malar bones/cheek bones) sit between the zygomatic processes of the maxilla and temporal bone. Zygomatic Bone. 27) The foramen magnum is found in the _____ bone. It is roughly quadrangular in shape. y) Infraorbital foramen. A _____ is a rounded passageway through a bone. Occipital bone 19. occipital condyles 68. hypoglossal canal 69. foramen magnum 4. indicate bone markings. Think about the anatomic plane in which this suture lies. Email This BlogThis! This bone forms the cheeks and the lateral walls of the eye sockets or orbits. The supraorbital foramen lies directly under the eyebrow. Summary. Zygomatic bone, commonly known as the cheekbone, is a paired, irregular facial bone. Zygomatic bone from dog skull. You will find two surfaces and two processes in the zygomatic bone of a dog. The paired lacrimal bones are made up of the medial walls of each orbit with a lateral “sulcus” through which tears can drain into the nasal cavities It perforates the malar surface of the convex zygomatic bone near its center, for the passage of the zygomaticofacial nerve and vessels. The lateral palpebral ligament attaches to a small protuberance called the orbital tubercle. • Infraorbital foramen –allows passage of infraorbital nerve. The zygomatic process is a long, arched process projecting from the lower region of the squamous part and it articulates with the zygomatic bone. Zygomatic bones revealed variation in the number of foramina on their orbital and facial aspects. TA. The zygoma (also known as zygomatic bone or malar bone) is an important facial bone which forms the prominence of the cheek. Tympanic part Surrounds the external ear opening. The zygoma and its articulations comprise the zygomaticomaxillary complex (ZMC). Distance of ZO foramen from inferolateral angle of orbit was 9±2.51 mm and 7.8±1.74 mm on right and left side respectively. Lacrimal Bones The smallest bones of the skull located in the medial wall of the orbit. Results: Zygomaticofacial foramina are very frequent structures which tend to appear singly. The front portion of the bone is thick and jagged to allow for its joining with other bones of the face. The upper portion of the nasal septum is formed by this part of the ethmoid. 2011. It presents 3 surfaces, viz. Share to Twitter Share to Facebook Share to Pinterest. Frontal Bone: 2. Which part of the orbit is formed by the orbital surface of the zygomatic bone, the greater wing of the sphenoid bone, and the zygomatic process of the frontal bone? 3. alvelolar processes carotid canal ethmoid bone (perpendicular plate) external occipital protuberance foramen lacerum foramen magnum foramen ovale frontal bone glabella incisive fossa infenor nasal concha infertor orbital fissure The zygomatic nerve passes through the zygomatic-orbital foramen on this surface. Lateral Orbital Wall Bones. Single ZO foramen in 56% and 44%, double in 6% and 12%, absent in 38% and 44% on right and left sides were seen. Zygomatic Bone Anatomy. Mollusca. The zygomatic bone is nearly quadrangular in shape and it features three surfaces, five borders and two processes. The supraorbital foramen arches transversely below the superciliary arches and is the upper part of the margin of the orbit, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, … Zygomatic bone The zygomatic bone (also known as the zygoma; Os Zygomaticum; Malar Bone) is a paired bone of the human skull.It articulates with the maxilla, the temporal bone and the frontal bone.It forms part of the orbit and is commonly referred to as the cheekbone. Infraorbital groove and foramen. Results: Variable number of ZO and ZF foramina, ranging from 0 to 4 was seen. Inferior Orbital Fissure: 6. Mean and standard deviation were used to describe measurements. Supra-Orbital Foramen: 3. Each protrusion on the lower and lateral side of the orbit and rests on the maxilla is marked by zygomaticofacial foramen. Cnidaria. Part B Identify the suture found between the 2 parietal bones. It’s a foramen, the zygomatico-orbital foramen, which carries a zygomatic nerve. ANSWER: Correct Correct. Note that vomer, sphenoid bone, and zygomatic bone will each be labeled twice. Below this foramen is a slight elevation, which gives origin to the Zygomaticus . Articulations. The zygoma articulates with the greater wing of sphenoid, orbital surface and lateral border of maxilla, zygomatic process of the temporal bone (completing the zygomatic arch), and zygomatic process of the frontal bone. This article incorporates … This foramen leads into the zygomatic canal and is a passage for the zygomatic nerve and blood vessels. The frontal process of the zygomatic bone is a superiorly oriented extension that unites the zygomatic bone with the zygomatic process of the frontal bone. It is often referred to as the cheekbone, and it comprises the prominence just below the lateral side of the orbit . Zygomatic process definition, any of several bony processes that articulate with the cheekbone. facial bones cranial bones appendicular bones. Enclosing the brain is a function of _____. zygomaticotemporal foramen ( plural zygomaticotemporal foramina ) ( anatomy) A foramen in the zygomatic bone that gives passage to the zygomaticotemporal branch of … Select all that apply. nova Key: 1. This thickness also allows the bone to remain strong and sturdy to protect the more delicate features of the fa… Description. CONCLUSION: The location of ZO and ZF foramen can be population specific and knowledge of its location is important during stabilization of zygomatic fractures, in endoscopic subperiosteal facelift. Sella turcica Crista galli Foramen rotundum Lesser wing The dens is a feature of the atlas. u) Zygomatic bone, maxillary process. The zygomatic bone (zygoma) is an irregularly shaped bone of the skull. The frontal bone is a skull bone that contributes to the cranial vault. They also tend to appear at the same distance from the OC when left and right sides are compared. Foramina on the zygomatic bone: its clinical significance Elevation of hba1c in non-diabetic hypothyroid individuals: is anaemia the connecting link-a preliminary study Maxillary prosthesis supported by zygomatic implants. Processes. Perpendicular Plate 9. Mean distance from infraorbital foramen was 25.45+4.35 mm and 25.42+4 mm respectively on right and left side. • Infraorbital fissure –at junction of maxilla with the greater wing of sphenoid allows passage of zygomatic nerve, maxillary nerve (a branch of cranial nerve V), and blood vessels. Zygomaticotemporal foramen (foramen zygomaticotemporale) which exists between the zygomatic bone and the temporal bone. Landmarks. Zygomatic bone definition, a bone on each side of the face below the eye, forming the prominence of the cheek; cheekbone. zygomatic bone lacrimal bone. This branch is sensory/motor/mixed (circle one). Who are the experts? A hole in the maxilla just below the orbit of the eye. Processes. zygomaticotemporal foramen foramen zygomaticotemporale [TA] the opening on the temporal surface of the zygomatic bone for passage of the zygomaticotemporal nerve.. … ebneshahidi Zygomaticoorbital foramen (foramen zy- gomaticoorbitale) which exists between the orbital cavity and zygomatic bone. A single ZF foramen was seen in 148 (44.9%) sides. Zygomatic process of temporal bone; Mandibular fossa; Articular tubercle; Ethmoid bone; Lacrimal bone; Nasal bone; Maxilla; Zygomatic bone; Temporal process of zygomatic bone; Frontal process of zygomatic bone; Mandible; Coronal suture; Lamboidal suture; Sagittal view. The cheekbones have three surfaces, four processes, three foramina, and three articulations. The lacrimal bone is a tiny bone found in the medial portion of the orbit. The opening on the lateral surface of the zygomatic bone below the orbital margin that transmits the zygomaticofacial nerve. A slight elevation is found below this … 1. frontal bone 2. nasal bone 3. zygomatic bone 4. maxilla 5. mandible 6. orbital cavity 7. lacrimal bone 8. orbital bone 9. ant. 3. alvelolar processes carotid canal ethmoid bone (perpendicular plate) external occipital protuberance foramen lacerum foramen magnum foramen ovale frontal bone glabella incisive fossa infenor nasal concha infertor orbital fissure s) Zygomatic bone, temporal process. The zygomatic bones form the prominences of the cheek. Palatine bone. The midline body of the sphenoid contains the sphenoid sinus. The zygomaticofacial foramen is a small aperture. nasal. The zygomatic bone is also known as the zygomatic arch, the zygoma, the malar bone, the cheek bone and the yoke bone. 53169. Zygomatic Bone Processes. 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. Multiple choice question. A02.1.14.010. It transmits the pressure applied to the zygomatic region toward three otherwise unconnected bones – the maxilla, the frontal, and the temporal bone. Mandible. C) nasal bones. Etymology. 164).It presents a malar and a temporal surface; four processes, the frontosphenoidal, orbital, maxillary, and temporal; and four borders. Parietal bone 3. Select the maxillary branch of the trigeminal nerve and read its description: a. Anatomical terms of bone. Zygomatic Bone: 7. Annelida. Zygomatic process A bridgelike projection that articulates with the zygomatic bone to form the zygomatic arch. Surfaces Noun. Browse 103 zygomatic bone stock photos and images available, or start a new search to explore more stock photos and images. sinus foramen fissure. FMA. The zygomatic canal is a passage within the zygomatic bone starting with one opening on the orbital surface (zygomatico-orbital foramen), and leading to openings on the temporal (zygomaticotemporal foramen) and the facial surfaces (zygomaticofacial foramen) of the zygomatic bone. D) zygomatic process. A) frontal B) parietal C) ethmoid D) occipital E) temporal 28) The suture that forms the articulation of the parietal bones with the frontal bone is the _____ suture. The zygomaticofacial foramen, located at the mid-lateral surface of the zygomatic bone that gives off the zygomaticofacial nerve and zygomaticofacial vessels, has also been found to vary from being double or being absent. Near the center of the temporal surface of the zygomatic bone is the zygomaticotemporal foramen for the transmission of the zygomaticotemporal nerve. foramen zygomaticoorbitale[TA] either of the two openings on the orbital surface of each zygomatic bone, which transmit branches of the zygomatic branch of the trigeminal nerve and branches of the lacrimal artery. nova Key: 1. The zygomatic canal is a passage within the zygomatic bone starting with one opening on the orbital surface (zygomatico-orbital foramen), and leading to openings on the temporal (zygomaticotemporal foramen) and the facial surfaces (zygomaticofacial foramen) of the zygomatic bone. The zygomatic bone is somewhat rectangular with portions that extend out near the eye sockets and downward near the jaw. Structure Surfaces. The zygomatic bone is occasionally referred to as the zygoma, but this term may also refer to the zygomatic arch. Note that vomer, sphenoid bone, and zygomatic bone will each be labeled twice. orbital surface, lateral surface and temporal surface. The malar surface of the zygomatic bone is convex in shape and near its center it is pierced by a small aperture for the passage of the zygomaticofacial nerve and vessels called the zygomaticofacial foramen. See more. The orbital process is a thick, strong plate, protruding backward and medially from the orbital margin. , the occipital, and the paired temporal and parietal bones. The zygomaticofacial foramen is a small foramen in the mid lateral surface of the zygomatic bone that transmits the zygomaticofacial nerve (a branch of the zygomatic nerve from the maxillary division of the trigeminal nerve ) and zygomaticofacial vessels. Zygomatic foramen: transmits zygomatic nerve and vessels to temporal fossa and cheek (zygomaticotemporal nerve and zygomaticofacial nerve) (Fig. More prone to “trapdoor” fractures in childhood. Infra-Orbital Foramen Greater wing of the sphenoid bone. Posted by Laurax at 11:59 AM. The distances of these foramina to the nearest palpable bony points, infero-lateral angle of the orbit and infra-orbital foramen were measured using Vernier's calipers. Below this foramen is a slight elevation, which gives origin to the Zygomaticus.

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