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Question
The mature swallow
a. requires contraction of the masseter, temporalis, and medial pterygoid to provide support for tongue retraction and superior pressure on the palate.
b. requires contraction of the platysma to maintain lip seal.
c. requires contraction of the zygomatic major muscles to help elevate the lips during swallowing.
d. a & b
e. all of the above.
Answer
This answer is hidden. It contains 1 characters.
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