Intermediate Lateral Cutaneous Nerve of Thigh Quiz

Q1. From which divisions of the L2 and L3 ventral rami is the lateral cutaneous nerve of thigh typically formed?

• White rami communicantes
• Posterior divisions
• Dorsal rami
• Anterior divisions only

Q2. From which border of psoas major does the lateral cutaneous nerve of thigh usually emerge?

• Posterior border within the vertebral canal
• Medial border
• Anterior midline only
• Lateral border

Q3. What is the usual relationship of the nerve to the ASIS as it passes toward the thigh?

• It passes near the ASIS, commonly on its medial side
• It enters the obturator canal
• It always passes behind the greater trochanter
• It passes through the ischial spine

Q4. After entering the thigh, the nerve commonly divides into which major cutaneous branches?

• Anterior and posterior branches
• Tibial and fibular branches
• Medial and lateral plantar branches
• Superficial and deep fibular branches

Q5. Which terminal branch generally supplies skin farther down the anterolateral thigh?

• Sural nerve
• Femoral branch of genitofemoral nerve
• Posterior branch only
• Anterior branch

Q6. What area is more characteristically supplied by the posterior branch?

• Posterior calf only
• First dorsal web space
• Medial sole
• Upper lateral thigh

Q7. Why is the nerve vulnerable near the inguinal ligament?

• It wraps around the fibular neck
• It passes through a confined region near the ASIS and inguinal ligament
• It passes through the adductor hiatus
• It enters the tarsal tunnel

Q8. Which symptom pattern is most compatible with meralgia paresthetica?

• Foot drop with no sensory change
• Burning or numbness over the anterolateral thigh without motor weakness
• Loss of knee extension with patellar areflexia only
• Weak plantarflexion with sole numbness

Q9. Why can the nerve be at risk during procedures near the ASIS?

• It is fixed behind the knee
• Its course near the ASIS is superficial and variable
• It lies inside the femoral artery
• It always runs through the obturator foramen

Q10. How does the lateral cutaneous nerve of thigh differ from the femoral nerve?

• It is a sacral plexus nerve while the femoral nerve is cervical
• It is purely sensory, unlike the mixed femoral nerve
• It supplies the posterior leg while the femoral nerve supplies the sole
• It supplies quadriceps while the femoral nerve is sensory only