New anatomical insight of the levator labii superioris alaeque nasi and the transverse part of the nasalis

M. S. Hur, Kyung-Seok Hu, J. T. Park, K. H. Youn, Heejin Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Purpose: The aim of this study was to clarify the morphology and topography of the deep layer of levator labii superioris alaeque nasi muscle (LLSAN) and the transverse part of the nasalis. Anatomical variations in the topographic relationships were also described to understand the function of the LLSAN and the transverse part of the nasalis. Methods: Anatomical dissections were performed on 40 specimens of embalmed Korean adult cadavers. Results: The LLSAN was divided into two layers, which were superficial and deep in the levator labii superioris muscle (LLS), respectively. The superficial layer of LLSAN descended on the LLS, and the deep layer was located deep in the LLS. The deep layer of LLSAN originated from the superficial layer of LLSAN and the frontal process of the maxilla. It inserted between the levator anguli oris and the orbicularis oris muscles. This transverse part of the nasalis received some muscle fibers from the superficial layer of LLSAN in 90% (36/40) of specimens. The transverse part of the nasalis originated from the maxilla and ascended, passing posterior to the superficial layer of LLSAN in 65% (26/40) of specimens. However, it originated as two muscle bellies from the maxilla and the upper half of the alar facial crease, respectively, in 35% (14/40) of specimens. Conclusions: These findings will be crucial data to understand the structure and function of the LLSAN and the transverse part of the nasalis.

Original languageEnglish
Pages (from-to)753-756
Number of pages4
JournalSurgical and Radiologic Anatomy
Volume32
Issue number8
DOIs
Publication statusPublished - 2010 Oct 1

Fingerprint

Muscles
Maxilla
Cadaver
Dissection

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Surgery
  • Pathology and Forensic Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

@article{5ca958e7cb5f4b7385eb29f9565c4db1,
title = "New anatomical insight of the levator labii superioris alaeque nasi and the transverse part of the nasalis",
abstract = "Purpose: The aim of this study was to clarify the morphology and topography of the deep layer of levator labii superioris alaeque nasi muscle (LLSAN) and the transverse part of the nasalis. Anatomical variations in the topographic relationships were also described to understand the function of the LLSAN and the transverse part of the nasalis. Methods: Anatomical dissections were performed on 40 specimens of embalmed Korean adult cadavers. Results: The LLSAN was divided into two layers, which were superficial and deep in the levator labii superioris muscle (LLS), respectively. The superficial layer of LLSAN descended on the LLS, and the deep layer was located deep in the LLS. The deep layer of LLSAN originated from the superficial layer of LLSAN and the frontal process of the maxilla. It inserted between the levator anguli oris and the orbicularis oris muscles. This transverse part of the nasalis received some muscle fibers from the superficial layer of LLSAN in 90{\%} (36/40) of specimens. The transverse part of the nasalis originated from the maxilla and ascended, passing posterior to the superficial layer of LLSAN in 65{\%} (26/40) of specimens. However, it originated as two muscle bellies from the maxilla and the upper half of the alar facial crease, respectively, in 35{\%} (14/40) of specimens. Conclusions: These findings will be crucial data to understand the structure and function of the LLSAN and the transverse part of the nasalis.",
author = "Hur, {M. S.} and Kyung-Seok Hu and Park, {J. T.} and Youn, {K. H.} and Heejin Kim",
year = "2010",
month = "10",
day = "1",
doi = "10.1007/s00276-010-0679-4",
language = "English",
volume = "32",
pages = "753--756",
journal = "Surgical and Radiologic Anatomy",
issn = "0930-1038",
publisher = "Springer Paris",
number = "8",

}

New anatomical insight of the levator labii superioris alaeque nasi and the transverse part of the nasalis. / Hur, M. S.; Hu, Kyung-Seok; Park, J. T.; Youn, K. H.; Kim, Heejin.

In: Surgical and Radiologic Anatomy, Vol. 32, No. 8, 01.10.2010, p. 753-756.

Research output: Contribution to journalArticle

TY - JOUR

T1 - New anatomical insight of the levator labii superioris alaeque nasi and the transverse part of the nasalis

AU - Hur, M. S.

AU - Hu, Kyung-Seok

AU - Park, J. T.

AU - Youn, K. H.

AU - Kim, Heejin

PY - 2010/10/1

Y1 - 2010/10/1

N2 - Purpose: The aim of this study was to clarify the morphology and topography of the deep layer of levator labii superioris alaeque nasi muscle (LLSAN) and the transverse part of the nasalis. Anatomical variations in the topographic relationships were also described to understand the function of the LLSAN and the transverse part of the nasalis. Methods: Anatomical dissections were performed on 40 specimens of embalmed Korean adult cadavers. Results: The LLSAN was divided into two layers, which were superficial and deep in the levator labii superioris muscle (LLS), respectively. The superficial layer of LLSAN descended on the LLS, and the deep layer was located deep in the LLS. The deep layer of LLSAN originated from the superficial layer of LLSAN and the frontal process of the maxilla. It inserted between the levator anguli oris and the orbicularis oris muscles. This transverse part of the nasalis received some muscle fibers from the superficial layer of LLSAN in 90% (36/40) of specimens. The transverse part of the nasalis originated from the maxilla and ascended, passing posterior to the superficial layer of LLSAN in 65% (26/40) of specimens. However, it originated as two muscle bellies from the maxilla and the upper half of the alar facial crease, respectively, in 35% (14/40) of specimens. Conclusions: These findings will be crucial data to understand the structure and function of the LLSAN and the transverse part of the nasalis.

AB - Purpose: The aim of this study was to clarify the morphology and topography of the deep layer of levator labii superioris alaeque nasi muscle (LLSAN) and the transverse part of the nasalis. Anatomical variations in the topographic relationships were also described to understand the function of the LLSAN and the transverse part of the nasalis. Methods: Anatomical dissections were performed on 40 specimens of embalmed Korean adult cadavers. Results: The LLSAN was divided into two layers, which were superficial and deep in the levator labii superioris muscle (LLS), respectively. The superficial layer of LLSAN descended on the LLS, and the deep layer was located deep in the LLS. The deep layer of LLSAN originated from the superficial layer of LLSAN and the frontal process of the maxilla. It inserted between the levator anguli oris and the orbicularis oris muscles. This transverse part of the nasalis received some muscle fibers from the superficial layer of LLSAN in 90% (36/40) of specimens. The transverse part of the nasalis originated from the maxilla and ascended, passing posterior to the superficial layer of LLSAN in 65% (26/40) of specimens. However, it originated as two muscle bellies from the maxilla and the upper half of the alar facial crease, respectively, in 35% (14/40) of specimens. Conclusions: These findings will be crucial data to understand the structure and function of the LLSAN and the transverse part of the nasalis.

UR - http://www.scopus.com/inward/record.url?scp=77957590614&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957590614&partnerID=8YFLogxK

U2 - 10.1007/s00276-010-0679-4

DO - 10.1007/s00276-010-0679-4

M3 - Article

C2 - 20512646

AN - SCOPUS:77957590614

VL - 32

SP - 753

EP - 756

JO - Surgical and Radiologic Anatomy

JF - Surgical and Radiologic Anatomy

SN - 0930-1038

IS - 8

ER -