orbicularis oris

orbicularis oris

the muscle surrounding the mouth. It consists partly of fibers derived from other facial muscles such as the buccinator that are inserted into the lips and partly of fibers proper to the lips. It serves to close and purse the lips.

orbicularis oris

The SPHINCTER muscle surrounding the mouth used to close the mouth and purse the lips.
References in periodicals archive ?
These researchers instructed their test subjects to view cartoons while holding a pen in their mouth in such a way that either the zygomaticus major muscle (which is used when laughing and smiling) or its antagonist, the orbicularis oris muscle, was contracted.
We carry this incision down to the orbicularis oris musculature.
Using the second part of the coil to form the upper part of the mouth, the orbicularis oris, we get the 'Homer Simpson' look (Fig 3).
The act of kissing generally uses one muscle, called the orbicularis oris, that is responsible for puckering your lips when you kiss.
Istemsiz kasilmalar orbicularis oculi, frontalis, zygomaticus major, zygomaticus minor, levator labi superioris, risorius, orbicularis oris, mentalis ve platysma kaslarinda gozlenebilir (6,8).
Contraction of orbicularis oris tenses the lips and reduces their aversion.
Working against these to shut the lips is the orbicularis oris, a muscle wrapped around the lips in a circle.
4) The facial nerve innervates 23 paired muscles in addition to the unpaired orbicularis oris.
MOUTH LIFT THIS works the orbicularis oris muscle which encircles the mouth, as well as the muscles in the cheeks, around the eyes, and the forehead.
The orbicularis oris is gradually freed from the other perioral muscles (muscles of facial expression) in order to maximize advancement of the flap.
the buccal branch, which innervates the procerus, the zygomaticus major and minor, the levator labii superioris, the levator anguli oris, nasal muscles, the buccinator, and the orbicularis oris
Nasolabial folds are created by the zygomaticus minor, levator labii superioris, orbicularis oris, and levator labii superioris alaeque nasi.