NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Posterior longitudinal ligament
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Supraspinous ligament
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Arachnoid mater
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Ligamentum flavum
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Dura mater
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Detailed explanation-1: -The Lumbar Puncture needle pierces in order: skin, subcutaneous tissue, supraspinous ligament, interspinous ligament, ligamentum flavum, epidural space containing the internal vertebral venous plexus, dura, arachnoid, and finally the subarachnoid space.
Detailed explanation-2: -A lumbar puncture (LP) or spinal tap may be done to diagnose or treat a condition. For this procedure, your healthcare provider inserts a hollow needle into the space surrounding the spinal column (subarachnoid space) in the lower back to withdraw some cerebrospinal fluid (CSF) or inject medicine.
Detailed explanation-3: -Identify the needle-insertion site clinically: Palpate the lumbar vertebral spinous processes to identify the one closest to an imaginary line between the top of the superior posterior iliac crests; the closest spinous process is usually L4 (sometimes L3 in women).
Detailed explanation-4: -The Anterior Longitudinal Ligament attaches to the front (anterior) of each vertebra. This ligament runs up and down the spine (vertical or longitudinal). The Posterior Longitudinal Ligament runs up and down behind (posterior) the spine and inside the spinal canal.