: either of two muscles extending from the sphenoid bone to the lower jaw: a : a muscle that arises from the greater wing of the sphenoid bone and from the outer surface of the lateral pterygoid plate, is inserted into the condyle of the mandible and the articular disc of the ...
Evolution of jaw muscles in the lower tetrapodsIordansky, N N
Temporalis The temporalis is a fan-shaped muscle that covers the side of the head. This muscle closes the jaw, elevates and retracts the mandible, assists in side-to-side movements and maintains the position of the mandible at rest. Medial Pterygoid This is a deep two-headed muscle that ...
The tongue is made up of muscles covered by mucous membranes. These muscles are attached to the lower jaw and to the hyoid bone (a small, U-shaped bone, which lies deep in the muscles at the back of the tongue) above the larynx. The muscle fibers are heavily supplied with nerves, so...
Byron sat with his head thrust down and forward, his face white, the muscles in his jaw working. 拜伦朝前俯着身子,低着头,脸色苍白,下巴的肌肉直抽动。 3. The muscles in her back tightened, pulling down from her spine and causing her back to arc slightly. 她后背上的肌肉绷紧着,使她脊梁...
Also found in: Dictionary, Medical, Encyclopedia. Graphic Thesaurus 🔍 Display ON Animation ON Legend Synonym Antonym Related </>embed</> facial musclemasseter noun Words related to masseter nouna large muscle that raises the lower jaw and is used in chewing Related Words facial muscle ...
and thescapula. The infrahyoid muscles work in conjunction with thesuprahyoid musclesto stabilize the hyoid bone. While the suprahyoid muscles pull the lower jaw beneath and the hyoid bone backward to providemouthopening, the infrahyoid muscles hold the level of the hyoid bone constant, and have...
During clenching, activity of the cross-bite side masseter area was significantly lower in cases versus controls but no difference was found between cross-bite and non-cross-bite sides of this muscle. Conclusions Unilateral posterior cross-bite without functional mandibular lateral shift is associated ...
(Anatomy) a muscle of the mandible that assists in lowering the lower jaw [C17: from New Latindigastricus(with two bellies), from di-1+gastricusgastric, from Greekgastērbelly] Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 19...
The results showed that musculus depressor mandibulae, the opener of the lower jaw, was characterized by relatively long fascicle length, whereas musculus pterygoideus was characterized by its larger mass and physiological cross-sectional area (PCSA) in both sexes. Females have the potential capacity...