In the peeled images, the thinnest subcutaneous tissue is the eyelid, and the thickest tissue is between the
risorius and masseter muscles.
Rarely, if the injection is not performed properly, the
risorius muscle may be paralyzed, leading to an asymmetric smile.
The activity of the smile is determined by several facial muscles, like the elevator of the upper lip and wing of the nose, the zygomatic major and minor, the angle of the mouth, orbicularis oris and
risorius (4-6, 8-10).
Into the Pit | Where: The Pit, from 11am With Heartwork, Reece,
Risorius, The Harringtons, Rhys Davis, Sam Fowke, Winter Coat, Fire Fences, The People The Poet, HalfBlind and Climbing Trees.
Movement Muscles involved Kissing Orbicularis oris Blowing Buccinator, orbicularis oris Lifting Frontalis, corrugator supercilii, and upper eyebrows eyelid orbicularis oculi Smiling
Risorius, zygomaticus major, zygomaticus minor, caninus, levator labii superioris, and orbicularis oris TABLE 2: Examples of results provided by SONRIE.
The facial artery is deep to the platysma,
risorius, zygomaticus major and minor, levator labii superioris, and levator labii superioris alaeque nasi muscles.
Raising of the zygomatic area for singing need not provoke widening of the eyes, furrowing of the brow, dilating of the nostrils, wrinkling of the nose, or laughter, actions caused by other muscles, including the
risorius, the smiling muscles.
The probe tip was placed on the cheek ~10-15 mm lateral to the lip angle, avoiding natural creases in the skin when the underlying muscles (
risorius, buccinator, platysma) contracted (Figure 1(d)).
Just under the ear, she places an inverted triangle in white clay, the parotid, a salivary gland and, stretching from the parotid gland to the corner of the mouth, the thin
risorius muscle (Fig 8), often called the Tip stretcher', widening the mouth and creating a sardonic expression.
If you want to Google it, the major muscles used are the zygomaticus major/minor and the
risorius.