Testing Spinal cord and Nerves Part C

The video tutorial covers various aspects of the spinal cord, including the dorsal horn where sensory input is processed, the pia mater and dentate ligament, and the subarachnoid space containing cerebral spinal fluid. It also discusses the five lumbar spinal cord levels and the association of motor neuron cell bodies with the ventral horn. Finally, it identifies the L4 spinal nerve level based on its position relative to the L4 vertebrae.

How many lumbar spinal cord levels are there and what is their significance?

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What spinal nerve level is associated with the L4 vertebrae?

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