vallia
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Contraction of which of the following muscles contributes most to the
backward movement of the lower jaw during the process of mastication?
A. Digastric
B. Lateral pterygoid
C. Medial pterygoid
D. Mylohyoid
E. Temporalis
please list muscles involved in movement of the lower jaw.
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| suv
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temporalis?
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| eytanraz
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I think mylohyoid muscle.
Temporalis is involved in the upward movement of the mandible toward the maxilla
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| fox
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Digastric seems to be the most appropriate choice
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| new_n_lost
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ITS horizontal Fibers of Temporal muscle with Masseter
Digastric = Depresses mandible against resistence against hyoid bone (involved in Swallowing )
Pteryoids = Contirbute to the Lateral movements of Mastication
Mylohoid = Elevates the Hyoid bone floor of the mouth n tongue durring Swallowing n Speaking
Plz add if u can or correct me also thanx
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| smal
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Actions.—The Temporalis, Masseter, and Pterygoideus internus raise the mandible against the maxillæ with great force. The Pterygoideus externus assists in opening the mouth, but its main action is to draw forward the condyle and articular disk so that the mandible is protruded and the inferior incisors projected in front of the upper; in this action it is assisted by the Pterygoideus internus. The mandible is retracted by the posterior fibers of the Temporalis. If the Pterygoidei internus and externus of one side act, the corresponding side of the mandible is drawn forward while the opposite condyle remains comparatively fixed, and side-to-side movements. Such as occur during the trituration of food, take place. 9
this is from gray's anat,so yes temporalis
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| ManuNastai
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agree
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