Nerves
Muscle testing
Radiculopathy
100
The largest nerve in the human body.
What is the sciatic nerve?
100
If tested, this muscle would help differentiate an L5 radiculopathy from a peroneal (fibular) neuropathy, but not from a sciatic neuropathy.
What is the tibialis posterior (or FDL)?
100
This nerve root exits at the L4-L5 level.
What is L4?
200
A pure sensory nerve that branches directly from the lumbar plexus and innervates the anterolateral thigh.
What is the LFCN o(r the lateral cutaneous nerve of the thigh)?
200
Abnormality of the H-reflex is associated with a radiculopathy at which level?
What is S1?
300
This branch of the lumbar plexus ends distally as the saphenous nerve.
What is the femoral nerve?
300
The most common level of lumbosacral radiculopathy.
What is L5 (or S1) depending on source.
400
This branch of the sacral plexus innervates the largest muscle in the human body.
What is the inferior gluteal nerve (L5-S1-S2)
500
This nerve typically only has L1 root innervation.
What is the ilioinguinal nerve?