Lumbar Needle Finally Through Which Layer Of Membrane

To do a lumbar puncture, the needle goes through the skin, the subcutaneous tissue, the supraspinous ligament, the interspinous ligament, the ligamentum flavum, then to the dura mater, the epidural space between the dura mater and the arachnoid, then the arachnoid, and finally through the arachnoid to the subarachnoid space, where the cerebrospinal fluid is located.

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