The 10-layer structure that a spinal tap passes through
Apr 21, 2022
Spinal puncture, also known as lumbar puncture, lumbar puncture
The puncture needle should pass through the skin, subcutaneous tissue, supraspinous ligament, interspinous ligament between the spinous processes, ligamentum flavum, epidural space (including the internal vertebral venous plexus, dura mater, and arachnoid) in order, and enter the subarachnoid space , and is located between the roots of the cauda equina. As the needle passes through the ligamentum flavum, the physician can feel a sense of breakthrough.
Subcutaneous tissue subdivision: superficial fascia, deep fascia
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