Sagittal CT scan section of the lumbosacropelvic part of goat cadaver with the needle inserted in the L5-L6 showing; L4,4th lumbar vertebra; L5, 5th lumbar vertebra; L6, 6th lumbar vertebra; L5-L6, last interlumbar space; Sac, Sacrum; L6-S, lumbosacral space P, spinous processes; Co1, 1st coccygeal vertebra; N, needle; VC, vertebral canal; SP, spinal cord; R, Rectum, UB, urinary bladder.