What does the term depressor refer to in the name depressor labii inferioris?
lowers lower lip. Origin of depressor labii inferioris. mandible.
What is the origin of depressor labii inferioris?
Depressor labii inferioris muscle
| Depressor labii | |
|---|---|
| Origin | oblique line of the mandible, between the symphysis and the mental foramen |
| Insertion | integument of the lower lip, Orbicularis oris fibers, its fellow of the opposite side |
| Nerve | marginal mandibular branch of the facial nerve |
| Actions | depression of the lower lip |
What is the depressor labii inferioris muscle?
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 quadratus Labii Superioris?
The levator labii superioris muscle, also known as the quadratus labii, contributes to facial expression and movement of the mouth and upper lip. The levator labii superioris receives its blood supply from terminal branches of the facial artery and the infraorbital branch of the maxillary artery.
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.
Where is depressor labii inferioris?
chin area
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.
Where is depressor labii inferioris muscle?
What is the meaning of Labii?
a Latin word meaning “of the labium” (= a lip or fold on the outside of the female sex organs), used in medical names and descriptions. Sexual & reproductive organs.