Surgical and Radiologic Anatomy

, Volume 29, Issue 5, pp 383–388 | Cite as

Topographic distribution area of the infraorbital nerve

  • Kyung-Seok Hu
  • Jinny Kwak
  • Ki-Seok Koh
  • Shinichi Abe
  • Christian Fontaine
  • Hee-Jin KimEmail author
Original Article


The infraorbital nerve (ION) supplies the skin and mucous membranes of the middle portion of the face. This nerve is vulnerable to injury during surgical procedures of mid-face. Severe pain and loss of sense are noted in patients whose infraorbital nerve is either entirely or partially lost after these surgeries. We investigated the distribution area and topography of the ION, about which little is currently known, by dissecting 43 hemifaces of Korean cadavers. The ION produced four main branches, the inferior palpebral, internal nasal, external nasal, and superior labial branches. The inferior palpebral branch was generally bifurcated, giving off a medial and a lateral branch (58.1%). The internal nasal branch ran superior to the depressor septi muscle, along the ala of the nose. It supplied the skin of the philtrum and gave off a terminal branch that supplied the nasal septum and the vestibule of the nose. The external nasal branch was distributed diversely supplying areas between the root and the ala of the nose. The superior labial branch was the largest branch of the ION produced the most subbranches. These subbranches were divided into the medial and lateral branches depending upon the area that they supplied.


Infraorbital nerve Distribution area Branching pattern Anatomy 



This study was supported by the Yonsei University College of Dentistry fund 2006 (6-2006-0011).


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Kyung-Seok Hu
    • 1
  • Jinny Kwak
    • 2
  • Ki-Seok Koh
    • 3
  • Shinichi Abe
    • 4
  • Christian Fontaine
    • 5
  • Hee-Jin Kim
    • 1
    Email author
  1. 1.Division in Anatomy and Developmental Biology, Department of Oral Biology, Oral Science Research Center, Human Identification Research Center, Brain Korea 21 Project, College of DentistryYonsei UniversitySeoulSouth Korea
  2. 2.College of DentistryYonsei UniversitySeoulSouth Korea
  3. 3.Department of Anatomy, College of MedicineKonkuk UniversityChungjuSouth Korea
  4. 4.Department of AnatomyTokyo Dental CollegeChibaJapan
  5. 5.Laboratoire d’Anatomie, Faculté de MedecineHenri Warembourg, Université Lille 2LilleFrance

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