Anatomy of the Carotid Canal Region

  • Madjid Samii
  • Wolfgang Draf
  • Johannes Lang


The first part of the carotid canal runs upward and forward. This segment, which we call the ascending petrous part of the carotid canal (Lang and Schreiber 1983), forms an average angle of 122° with the FHP in neonates and 99.7° (86–114°) in adults. The canal then turns forward and medially at almost a right angle. This bend has been termed the petrous curvature. We found the distance from the external orifice of the carotid canal (lateral wall) to the supramastoid crest to be 17.3 (16–19) mm in neonates, 21.5 (18–23) mm at 3 years of age, 24.67 (24–25) mm at 8 years of age, and 28.4 (23–35) mm in adults (Lang et al. 1983).


Jugular Bulb Postnatal Development Midsagittal Plane Carotid Canal External Orifice 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Madjid Samii
    • 1
  • Wolfgang Draf
    • 2
  • Johannes Lang
    • 3
  1. 1.Medizinische Hochschule HannoverKrankenhaus Nordstadt derHannover 1Germany
  2. 2.Städtische Kliniken FuldaFuldaGermany
  3. 3.Vorstand des Anatomischen Instituts der UniversitätWürzburgGermany

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