The stylet is removed to allow cerebrospinal fluid to escape from the reservoir at the base of the spinal column.
A patient undergoing a lumbar puncture (spinal tap). This is a procedure where a sample of cerebrospinal fluid is obtain from the lumbar spine via the space between the 4th and 5th lumbar vertebrae.
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Keywords: cerebrospinal, csf, disease, diseases, fluid, lumbar, meningitis, needle, neurology, neuropathology, punch, puncture, spinal, spine, tap, test
