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In the human skull, the zygomatic bone (from Ancient Greek: ζῠγόν, romanized: zugón, lit. 'yoke'), also called cheekbone or malar bone, is a paired irregular bone, situated at the upper and lateral part of the face and forming part of the lateral wall and floor of the orbit, of the temporal fossa and the infratemporal fossa.
In anatomy, the zygomatic arch, or cheek bone, is a part of the skull formed by the zygomatic process of the temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone), the two being united by an oblique suture (the zygomaticotemporal suture); [1] the tendon of the temporal muscle ...
The masseter, which extends from the zygomatic arch to the lower rear corner of the mandible, is a major component of the chewing apparatus in herbivorous artiodactyls. While other artiodactyls added torque to the muscle by raising the jaw joint, entelodonts instead expanded the rear of the jaw downwards, as a deep, curved flange.
Zygomatic bones: attach to the temporal bone to form the zygomatic arch (cheek bone) Palatine bones: form the back of the hard palate; Sphenoid bone: formed by fusion of the foetal basisphenoid and presphenoid bones, at the base of the skull. Can become fractured in horses that rear over backwards. Vomer: forms the top of the inside of the ...
Squirrels (family Sciuridae) tend to have broad zygomatic plate that extend above the infraorbital foramen. [9] The mountain beaver (Aplodontia rufa), the only surviving member of its family, retains the primitive narrow and low plate. [10] The dormice (Gliridae) have broad, high zygomatic plates, [11] except for Graphiurus, which has a lower ...
The zygomatic process forms an "L" in this picture. As a comparison, this is how the skull looks with almost all of the zygomatic process removed. The zygomatic processes (aka. malar) are three processes (protrusions) from other bones of the skull which each articulate with the zygomatic bone. The three processes are: [1]
The most dangerous of those ingredients is nutmeg, which is a mild toxin and, in high levels, can cause vomiting and diarrhea. Your cat might appreciate some turkey, ham, or veggies, but it's ...
The zygomasseteric system (or zygomasseteric structure) in rodents is the anatomical arrangement of the masseter muscle of the jaw and the zygomatic arch of the skull. The anteroposterior or propalinal (front-to-back) motion of the rodent jaw is enabled by an extension of the zygomatic arch and the division of the masseter into a superficial, lateral and medial muscle.