Opening the Jaws During Speech and Mastication Involves BOTH Elevation

question 17

Multiple Choice

Opening the jaws during speech and mastication involves BOTH elevation and retraction of the mandible.When the jaws close,this involves BOTH depression and protrusion of the mandible.

• A)Both statements are true.
• B)Both statements are false.
• C)The first statement is true;the second is false.
• D)The first statement is false;the second is true.

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