Structure forming the Posterior 1/3 of veebral canal is (JIPMER May 2019)
High-Yield Explanation
At tip of spine of veebra there is Supra-Spinous Ligament Inter-Spinous Ligament b/w two spines & Ligamentous Flavum - ligament connecting lamina of veebral arch superiorly to next adjacent veebra (gives elasticity to veebral canal) forming post 1/3rd of veebral canal.