Figure 5
From: An anatomical and radiological study of the tectorial membrane and its clinical implications

Sagittal view of the craniovertebral junction. Gross hemisection (a) and a plastic embedded section by Goldner’s Trichrome stain (b) of the same specimen. Dark orange stain indicates dense connective tissues attached to the bony tissue (green stain). c clivus, d dens. (c–f) Show magnifications of boxes of a whole specimen. (c) The inferior clivus forms the superior border of the supradental space (asterisk) filled with adipose tissues. (d) The cruciate ligament–tectorial membrane (TM)–dura mater complex in the impingement site of a dens. Arrows indicate a calcified transverse ligament of the cruciate ligament. (e) The fibers of the inferior crus of the cruciate ligament are close to the TM in the body of the axis. (f) A deep layer of the TM is firmly attached to the connective tissues of the intervertebral space between the axis and C3 (white asterisk), except for the superficial layer of the TM and spinal dura mater. D dura mater, iC inferior crus of the cruciate ligament, tC transverse ligament of the cruciate ligament, T tectorial membrane.