risorius


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risorius

(rɪˈzɔːrɪəs)
n
a facial muscle responsible for smiling
References in periodicals archive ?
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.
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.
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.
Denervation of the orbicularis oculi muscle results in the inability of the patient to close the eye lids effectively, while denervation of the risorius muscle results in the limited retraction of the angle of mouth.
Istemsiz kasilmalar orbicularis oculi, frontalis, zygomaticus major, zygomaticus minor, levator labi superioris, risorius, orbicularis oris, mentalis ve platysma kaslarinda gozlenebilir (6,8).