HEAD NECK
TRIANGLES OF NECK
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This muscle of the face will close and protrude lips
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obicularis oculi
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obicularis oris
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buccinator
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zygomaticus
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Explanation:
Detailed explanation-1: -Orbicularis oris muscle along with the buccinator and pharyngeal constrictor form a functional unit, known as “buccinator mechanism” which has an important role in orofacial function (swallowing, sucking, whistling, chewing, vowel pronunciation, kissing).
Detailed explanation-2: -The orbicularis oris muscle is innervated by the buccal nerve and its function is to close the mouth, by bringing the lips together, and protrudes the lips, like when kissing or whistling.
Detailed explanation-3: -The Orbicularis Oris is a muscle of facial expression of the mouth. The muscles of facial expression of the mouth are: Levator Labii Superioris Alaeque Nasi (also a muscle of fascial expression of the nose)
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