Beginner Common Fibular Nerve Quiz

Q1. The common fibular nerve is a terminal component of which nerve?

• Sciatic nerve
• Obturator nerve
• Femoral nerve
• Superior gluteal nerve

Q2. Which root values are usually carried by the common fibular nerve?

• S2 through S4
• L4 through S2
• L2 through L4
• L1 through L3

Q3. Which muscle in the posterior thigh receives innervation from the common fibular component of the sciatic nerve?

• Semitendinosus
• Semimembranosus
• Short head of biceps femoris
• Long head of biceps femoris

Q4. Around which structure does the common fibular nerve become particularly superficial?

• Medial malleolus
• Tibial tuberosity
• Neck of the fibula
• Ischial spine

Q5. What are the two major terminal branches of the common fibular nerve?

• Saphenous and obturator nerves
• Medial and lateral plantar nerves
• Superficial fibular and deep fibular nerves
• Tibial and sural nerves

Q6. Which terminal branch supplies the anterior compartment of the leg?

• Saphenous nerve
• Deep fibular nerve
• Superficial fibular nerve
• Sural nerve

Q7. Which terminal branch supplies the lateral compartment of the leg?

• Saphenous nerve
• Superficial fibular nerve
• Tibial nerve
• Deep fibular nerve

Q8. Which motor deficit is classically associated with a common fibular nerve lesion near the fibular neck?

• Loss of plantarflexion only
• Loss of hip adduction
• Foot drop
• Loss of knee extension

Q9. Why is the common fibular nerve vulnerable to external compression near the knee?

• It lies superficially around the fibular neck
• It runs through the obturator canal
• It lies inside the femoral canal
• It is enclosed within the tibia

Q10. Which description best summarizes the common fibular nerve?

• An L2 through L4 lumbar plexus nerve supplying quadriceps
• An L1 through L2 cutaneous nerve supplying the groin
• An S2 through S4 nerve supplying gluteus maximus
• An L4 through S2 sciatic component that divides into superficial and deep fibular nerves