subpetrosal

sub- +‎ petrosal

• Rhymes: -əʊsəl

subpetrosal (not comparable)

1. (anatomy) Beneath the petrous part of the temporal bone
   • 2015 September 15, “Safe Corridor to Access Clivus for Endoscopic Trans-Sphenoidal Surgery: A Radiological and Anatomical Study”, in PLOS ONE‎, →DOI:

     To avoid injury to the subpetrosal sinuses, the width of the penetration of the clivus in the posterior wall of the sphenoid sinus should be limited within 10.36±0.45 mm from the mid-sagittal line in the plane passing through the lowest, central point of the SF; less than 10.76±0.43mm from the mid-sagittal line, in the plane passing through the aperture of the sphenoid sinus; and 10.55±0.45 mm from the mid-sagittal line.