Arrange following structures as pierced by spinal needle during spinal block (from outside to inside) i) Interspinous ligaments ii) Ligamentum flavum iii) Supra spinous ligament iv) Epidural space: (A) (i), (ii), (iii), (iv), (B) (ii), (iv), (i), (iii), (C) (iii), (i), (ii), (iv), (D) (ii), (iii), (i), (iv)
Answer is C. Structures as pierced by spinal needle during spinal block (from outside to inside): iii)Supra spinous ligament i) Interspinous ligaments ii) Ligamentum flavum iv) Epidural space