title: [Applied anatomic study on intraorbital and intraethmoidal parts of ethmoidal artery].
abstract: OBJECTIVE
  In order to provide anatomic data for operation of ethmoidal sinus and optic canal decompression.
  
  
  METHODS
  Using microanatomic method, the intraorbital and intraethmoidal parts of ethmoidal arteries were observed and measured.
  
  
  RESULTS
  The length of intraorbital segment of anterior ethmoidal artery was 5.16 +/- 1.24 mm, and its diameter was 0.56 +/- 0.17 mm; the length of intraorbital segment of posterior ethmoidal artery was 9.08 +/- 2.29 mm, with diameter 0.37 +/- 0.14 mm. The ethmoidal artery, nerve and vein were surrounded by fascial sheath which could extend to ethmoidal sinus. Three variants of ethmoidal arteries could be found: It passed through bony canal; It went between the superior wall of ethmoidal cell and ethmoidal mucosa; One part went through bony canal, but the other did not.
  
  
  CONCLUSIONS
  It was important to find ethmoidal artery in operation of ethmoidal sinus and optic canal decompression.
authors.affiliation: Department of Anatomy, Weifang Medical College, Weifang 261042.
authors.forename: X
authors.initials: X
authors.lastname: Ju
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Jiang
authors.forename: H
authors.initials: H
authors.lastname: Cao
authors.forename: P
authors.initials: P
authors.lastname: Gao
authors.forename: S
authors.initials: S
authors.lastname: Zhu
authors.forename: Q
authors.initials: Q
authors.lastname: Liu
mesh_terms: D000328:Adult; D001158:Arteries / Q000033:anatomy & histology; D005005:Ethmoid Sinus / Q000098:blood supply*; D006801:Humans; D009915:Orbit / Q000098:blood supply*