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The orbicularis oris is not a simple sphincter muscle like the orbicularis oculi; it consists of numerous strata of muscular fibers surrounding the orifice of the mouth, but having different direction. It consists partly of fibers derived from the other facial muscles which are inserted into the lips, and partly of fibers proper to the lips.
The orbicularis oculi is a muscle in the face that closes the eyelids.It arises from the nasal part of the frontal bone, from the frontal process of the maxilla in front of the lacrimal groove, and from the anterior surface and borders of a short fibrous band, the medial palpebral ligament.
Orbicularis oris: Tissue surrounding lips: Underneath skin at corners of the mouth Lateral movement of cheeks (e.g., sucking on a straw; also used to compress air in mouth while blowing) Cheeks: Lateral: Buccinator: Maxilla, mandible; sphenoid bone (via pterygomandibular raphae) Orbicularis oris: Pursing of lips by straightening them laterally ...
The lower deep branches supply the buccinator and orbicularis oris, and join with filaments of the buccinator branch of the mandibular nerve. Muscles of facial expression
The zygomatic branches of the facial nerve (malar branches) are nerves of the face.They run across the zygomatic bone to the lateral angle of the orbit.Here, they supply the orbicularis oculi muscle, and join with filaments from the lacrimal nerve and the zygomaticofacial branch of the maxillary nerve (CN V 2).
The more anterior branches supply the frontalis, the orbicularis oculi, and corrugator supercilii, and join the supraorbital and lacrimal branches of the ophthalmic. The temporal branch acts as the efferent limb of the corneal reflex .
The most common treatment targets are the orbicularis oculi, depressor anguli oris (DAO), mentalis, platysma and the contralateral depressor labii inferioris muscles. [24] Due to the short span of Botox effects though, patients must come back to the doctor for re-injection approximately every 3 months.
orbicularis oculi (pars orbitalis) 7: Lid tightener: orbicularis oculi (pars palpebralis) 8: Lips toward each other: orbicularis oris: 9: Nose wrinkler: levator labii superioris alaeque nasi: 10: Upper lip raiser: levator labii superioris, caput infraorbitalis: 11: Nasolabial deepener: zygomaticus minor: 12: Lip corner puller: zygomaticus major ...