The other three muscles close the mouth; the masseter and the medial pterygoid by pulling up the angle of the mandible and the ... The mandible is moved primarily by the four muscles of mastication: the masseter, medial pterygoid, lateral pterygoid and the ...
In effect seizure can occur, including oral area myoclonus, especially affecting masseter muscle, orbicularis oris muscle, oral ...
The lateral scar for the attachment of the masseter muscle is prominent and runs the entire length of the jugal. Another unique ... possibly being related to the attachment of the masseter musculature between the ascending ramus and zygomatic arch. ...
J. monesi has the deepest insertion point for the masseter muscle (which closes the mouth while biting down) of any rodent. It ...
The medial pterygoid, along with the masseter allows the jaw to move in a vertical direction as it contracts and relaxes. The ...
The masseter, and especially the temporalis, muscles insert on this jutting strip of bone, so reduction of this process meant ... The main inhibitors of a large gape for mammals are the temporalis and masseter muscles at the back of the jaw. These muscles ... and that in living carnivores the lip line is always anterior to the masseter muscle, which in Smilodon was located just behind ...
The masseter, which extends from the zygomatic arch to the lower rear corner of the mandible, is a major component of the ... Though the low jaw joint provided more room for the temporalis muscle, it also posed a problem for the masseter muscle. ... The pterygoideus muscle, which follows a similar path and function to the masseter, also benefited from the deep flange at the ... these mammals use their equivalent projections as a means of providing extra space for the attachment of the masseter muscle, ...
The zygoma provides important functions as the origin of the masseter muscle and as a point of resistance for masticatory ...
When the mental nerve is stimulated with electricity, muscles that close the jaw (particularly temporalis muscle and masseter ...
At least in primates, it is a specialized muscle protein found only in the temporalis and masseter muscles of the jaw. Myosin ...
The Hystricomorpha, such as the guinea pig, have larger superficial masseter muscles and smaller deep masseter muscles than ... Among rodents, the masseter muscle plays a key role in chewing, making up 60% - 80% of the total muscle mass among masticatory ... In rodents, masseter muscles insert behind the eyes and contribute to eye boggling that occurs during gnawing where the quick ... The Sciuromorpha, such as the eastern grey squirrel, have a large deep masseter, making them efficient at biting with the ...
"Quantitative analysis of masseter and temporalis EMGs: a comparison of anterior guided versus balanced occlusal concepts in ...
... the insertion surface of the lateral masseter was highly developed, but not as large than in Mesotherium. The first upper ...
Their robust skull architecture and shortened faces have been thought to be related to increased masseter muscles used to chew ...
... zygomatic plate serves to resist muscular tension resulting from the contraction of the incisors by the anterior deep masseter ...
The rapid evolution of the masseter insertion area is able to show early diversification of early Cynodonts (Botha et al., 2007 ... Dvinia the location of masseteric fossa high on the coronoid process is seen as an initial stage of differentiation of masseter ...
Like many grazers, the masseter muscle, which is also responsible for closing the jaw, seems to have been the dominant jaw ... The insertion of the masseter is placed forwards, in front of the orbits, which could have allowed better control over the ...
It also contains the submandibular and parotid salivary gland as well as the muscles of mastication (the masseter, pterygoid, ...
The temporalis, masseter, and internal and external pterygoid muscles, which are mainly used for chewing, have a minor effect ...
The masseteric artery is small and passes laterally through the mandibular notch to the deep surface of the masseter muscle, ...
The area between the condyloid process, which connects the jaw with the skull, and the teeth was probably where the masseter ...
The Masseter muscle was anchored to a large bony flange placed in the lower part of the jaw, known as the descending process. ...
The muscles of mastication or masticatory muscles are: a) masseter, b) temporalis, c) medial pterygoid, d) superior belly of ... The following average surfaces were found: temporalis - 8 cm2, masseter - 7.5 cm2, and medial pterygoid - 4 cm2 which makes a ...
The device uses electrodes place on the masseter muscle (a jaw muscle used for chewing) and simulates the texture by changing ...
The masseter muscle, as well as the lateral muscle of the jaw, are moved forward on the maxillary, providing very efficient, ...
The development of the angulation of the zygomatic arch in the adult Galesaurus indicates that the superficial masseter muscle ... which indicates that older individuals of Galesaurus had larger and more developed masseter muscles than in Thrinaxodon. ... it is hypothesized that Galesaurus had highly developed masseters. The external occipital crest of Galesaurus increased during ...
The temporalis, masseter, medial and lateral pterygoids are the muscles of mastication and these contribute to the elevation, ...
The skull is specific in many ways; first, the infraorbital foramen is greatly enlarged so portions of the masseter extend ...
... and the masseter reflex can be termed bulbar reflexes. A blood vessel blockage (such as in a stroke) will injure the pyramidal ...
When injecting the masseter muscle of the jaw, loss of muscle function can result in a loss or reduction of power to chew solid ...