If you take a bit of an apple and close your mouth, what movement are you performing at the temporomandibular joint?
Added by Jose G.
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Step 1: You open your mouth to take a bite of the apple and then close it to bite down — the mandible (lower jaw) moves toward the maxilla (upper jaw). Show more…
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In chewing a bite of apple, what actions are you performing with your mandible? O Protraction and retraction O Depression and elevation O Lateral and medial excursion O Adduction and abduction O Eversion and inversion
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Watch this video (http://openstaxcollege.org/ITM J) to learn about TMJ. Opening of the mouth requires the combination of two motions at the temporomandibular joint, an anterior gliding motion of the articular disc and mandible and the downward hinging of the mandible. What is the initial movement of the mandible during opening and how much mouth opening does this produce?
Action of masseter muscle upon the temporomandibular joint? a. Elevates, retracts b. Elevates c. Depresses d. Elevates, protracts e. Depresses, retracts
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