Anatomy & Physiology Question #31


From which plexus do the sciatic nerves arise?


  1. Vagal
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  2. Choroid
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  3. Lumbosacral
    • Rationale:
  4. Brachial
    • Rationale:



The correct answer is C. The sciatic nerve provides the connection to the nervous system from spinal nerves L4 to S3. It contains fibers from both the front and back of the lumbosacral plexus divisions.The sciatic nerves do not arise from the vagal, choroid, or brachial plexus.

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