Is the depressor Labii Inferioris?
Depressor labii inferioris is a paired facial muscle located in the chin region of the face. Due to its quadrangular shape, it is also called quadratus labii inferioris….Depressor labii inferioris muscle.
| Origin | Oblique line of mandible (continuous with platysma muscle) |
|---|---|
| Innervation | Mandibular branch of facial nerve (CN VII) |
What are lip depressors?
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.
Where would you find the depressor labii inferioris?
The depressor labii inferioris is located in the chin area. Muscles attach to bone or tissue at two or more places. If the muscle attaches to a bone that doesn’t move during the action of that muscle, the attachment is called an origin.
How do you exercise the depressor labii inferioris?
This simple pout exercise targets the depressor labii inferioris and mentalis muscles which help with the downward movement and protrusion of the lower lip. Make a pouting face to draw your lower lip out and downwards. Hold this position for five to ten seconds, then relax.
What muscle draws lower lip inferiorly?
Platysma Draws outer part of lower lip inferiorly and posteriorly as in pouting and depresses mandible. Orbicularis oculi Closes eye.
What does the term depressor refer to in the name depressor labii inferioris quizlet?
lowers lower lip. Origin of depressor labii inferioris. mandible.
What muscles elevate eyebrows?
The frontalis muscle
The frontalis muscle is responsible for elevating the eyebrows, while the corrugator supercilii, orbicularis oculi, and procerus play a role in its depression. The function of the forehead is often spared in middle cerebral artery strokes.
Is the muscle that attaches at the Modiolus angle of the mouth and inserts in the tissue of the lips?
Levator muscles attach to the lower lip at or near the modiolus to elevate the lips or oral commissure. Various depressors of the lower lip attach to the modiolus and the skin of the lip.