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Questions and Answers
Which spinal nerves contribute to the formation of the lumbar plexus?
Where does the lumbar plexus originate?
Which nerve is not a branch of the lumbar plexus?
Which nerve innervates the lateral cutaneous area of the thigh?
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Which spinal nerves contribute to the formation of the sacral plexus?
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Study Notes
Lumbar Plexus
- The lumbar plexus is formed by the ventral branches of spinal nerves L1-L4.
- The lumbar plexus originates in the lumbar region of the spinal cord.
- The obturator nerve is a branch of the lumbar plexus.
- The lateral cutaneous nerve of the thigh, which is a branch of the lumbar plexus, innervates the lateral cutaneous area of the thigh.
- The iliohypogastric nerve and the ilioinguinal nerve are also branches of the lumbar plexus.
Sacral Plexus
- The sacral plexus is formed by the ventral branches of spinal nerves L4-S3.
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Description
Test your knowledge of the lower limb's lumbar and sacral plexuses with this quiz. See if you can categorize branches based on their spinal origin and understand their distribution and clinical significance.
