What Is Labii Inferioris
The Depressor Labii Inferioris Is a Facial Muscle That Allows You to Pull Your Lower Lip Down or to the Side. While This Muscle Has Very Limited Movement on...
The depressor labii inferioris is a facial muscle that allows you to pull your lower lip down or to the side. While this muscle has very limited movement on its own, it plays an important role in the complex structure of facial muscles that allow us to make such detailed and precise facial expressions.
What is the action of the quadratus Labii Superioris muscle?
The levator labii superioris muscle, also known as the quadratus labii, contributes to facial expression and movement of the mouth and upper lip. It courses alongside the lateral aspect of the nose, and its primary function is elevation of the upper lip.
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What is the action and location of the quadratus Labii Superioris?
Levator labii superiorisInsertionSkin and muscle of the upper lip (labii superioris)Arteryfacial arteryNervebuccal branch of the facial nerve (C.N. VII)ActionsElevates the upper lip
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