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Volume 4 Clinical Pediatric Dermatology
ISSN: 2472-0143
Page 68
JOINT EVENT
Wound Congress 2018 &
Clinical Dermatology Congress 2018
October 15-16, 2018
October 15-16, 2018 Rome, Italy
&
5th International Conference on
Advances in Skin, Wound Care and Tissue Science
14th International Conference on Clinical Dermatology
Morphological patterns and variations of the incisivus labii superioris muscle
Mi-Sun Hur
Catholic Kwandong University, South Korea
The current study examined the incisivus labii superioris muscle (ILS) and its morphologic and spatial relationships with
the surrounding structures, especially focusing on the upper mucolabial fold, labial glands, and modiolar region. ILSs were
investigated in 52 specimens from embalmed Korean adult cadavers. ILSs were observed in all specimens (100%). The ILS had
an oblique and linear origin. The ILS originated from the incisive fossa of the maxilla to the point just the medial to the origin
of the levator anguli oris muscle (LAO). The medial arising fibers of the ILS curved upward and laterally. The ILS muscle fibers
filled the space between the orbicularis oris muscle (OOr) and the LAO with fan shape. As the ILS coursed arching laterally,
it became the superolateral margin of the OOr, enlarging the dimension of the superior peripheral part of the OOr. And it
deepened the superolateral margin of the OOr posteriorly. The arising fibers of the ILS arched and covered the prominent
labial glands at the superior margin of the OOr. After the ILS coursed laterally along the anterior part of the upper mucolabial
fold, the ILS was divided into the superficial or deep inserting fibers of the ILS in most specimens. The deep inserting fibers
of the ILS were divided into several slips to blend with several muscles in the modiolar area: the deep fibers of OOr, deep
fibers of zygomaticus major muscle, or the superior fibers of buccinator. These specific results will be helpful for analyzing the
movements of the mouth and lips and performing various facial surgeries and treatments.
Clin Pediatr Dermatol 2018, Volume 4
DOI: 10.21767/2472-0143-C2-006