anguli การใช้

• The canine fossa gives origin to the levator anguli oris.
• Specifically, the levator anguli oris is innervated by the buccal branches of the facial nerve.
• It rests on the buccinator and levator anguli oris, and passes either over or under the infraorbital head of the levator labii superioris.
• It is contributed to by the following muscles : orbicularis oris, buccinator, levator anguli oris, depressor anguli oris, zygomaticus major, risorius, platysma, levator labii superioris.
• It is contributed to by the following muscles : orbicularis oris, buccinator, levator anguli oris, depressor anguli oris, zygomaticus major, risorius, platysma, levator labii superioris.
• It is larger and deeper than the comparable incisive fossa, and is separated from it by a vertical ridge, the canine eminence, corresponding to the socket of the canine tooth; the canine fossa gives origin to the levator anguli oris.
• Running backward and upward from each mental tubercle is a faint ridge, the oblique line, which is continuous with the anterior border of the ramus; it affords attachment to the depressor labii Inferioris ( Quadratus labii inferioris ) and depressor anguli oris ( Triangularis ); the platysma is attached below it.
• On the face, some branches pass upward to the medial angle of the orbit and the lacrimal sac, anastomosing with the angular artery, a branch of the facial artery; others run toward the nose, anastomosing with the dorsal nasal branch of the ophthalmic artery; and others descend between the levator labii superioris and the levator anguli oris, and anastomose with the facial artery, transverse facial artery, and buccal artery.