The internal carotid artery lies above the foramen lacerum and gives this segment of the internal carotid artery its name. The foramen lacerum itself is closed by fibrous and cartilaginous tissue and no relevant structures pass through it[^1]. The foramen lacerum has the following bony dimensions[^1] :
Dimension
Right (mm)
Left (mm)
Span (mm)
Length
6.3
6.49
0.25 - 11.75
Width
5.36
5.25
3.0 - 7.5
Illustration
Foramen lacerum (designation FL) on the bony skull. Figure adapted from Tauber et al.
Foramen lacerum
Foramen lacerum (designation FL) on the bony skull. Figure adapted from Tauber et al.