Masseter Muscle: Location, Actions, and Trigger PointsSee the
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Masseter Elevates mandible Temporalis Elevates mandible Medial Pterygoid Elevates mandible; Protracts mandible; Lateral & medial excursion of mandible Lateral Pterygoid Depresses mandible; Protracts mandible; Lateral & medial excursion of mandible Sternocleidomastoid Flexes neck (agonist); Rotates neck (ago...
Stokes M, Blythe M: Muscle Sounds In Physiology, Sports Science and Clinical Investigation. Oxford: Medintel; 2001. Google Scholar L'Estrange PR, Rowell J, Stokes MJ: Acoustic myography in the assessment of human masseter muscle. J Oral Rehabil 1993, 20: 353–362. Article Google Scholar ...
[4,23], and examining masseter muscle function associated with cranio-mandibular disorders [24]. Unfortunately, there are a number of factors that can potentially affect the MMG signal during dynamic muscle actions, including changes in torque production, muscle length, and the thickness of the ...
[4,23], and examining masseter muscle function associated with cranio-mandibular disorders [24]. Unfortunately, there are a number of factors that can potentially affect the MMG signal during dynamic muscle actions, including changes in torque production, muscle length, and the thickness of the ...
masseter closes jaw and elevates and protracts mandible; prime mover of jaw closure medial pterygoid elevates and protracts mandible; produces side to side movement of mandible; synergist of masseter and temporalis lateral pterygoid protracts mandible, moves mandible side to side styloglossus elevat...
masseter action Open closes jaw temporalis action elevates and retracts mandible buccinator action Laterally moves lips Sternocliedomastoid action Flexion of neck, contralateral rotation of head Pectoralis major action flexion, adduction, and medial rotation at shoulder Pectoralis minor action protracts and...
Masseter Prime mover of jaw closure Orbicularis oris closes lips Trapezius Stabilizes, raises, retracts, and rotates scapula Deltoid Prime mover of arm abduction when all its fibers contract simultaneously Biceps Brachii Flexes elbow joint and supinates forearm ...
draw the lip inferiorly and protrude the lower lip (pouting muscle) Buccinator pulls the corners of the mouth laterally and compresses the cheek when whistling or playing the trumpet Risorius pulls the corners of the mouth laterally Masseter closes the mouth (elevates the jaw) Temporalis closes...