Skull positioning lines (diagram)

Case contributed by Andrew Murphy

Skull positioning lines:

  • glabellomeatal line (GML)
  • orbitomeatal line (OML)
  • infraorbitomeatal line (IOML)
  • acanthiomeatal line (AML)
  • lipsmeatal line (LML)
  • mentomeatal line (MML)
  • external acoustic meatus (EAM)


Case Discussion

Diagram of the skull AP view. Modified image from Gray's anatomy via Wikimedia Commons. The original image can be seen at (

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