Intermediate Posterior Femoral Cutaneous Nerve Quiz

Q1. Which divisions of the sacral anterior rami contribute to formation of the posterior femoral cutaneous nerve?

• Anterior divisions of S4 and S5 only
• Posterior divisions of S1 and S2 plus anterior divisions of S2 and S3
• Anterior divisions of L2 to L4 only
• Posterior divisions of L4 and L5 only

Q2. After leaving the pelvis, the posterior femoral cutaneous nerve initially lies deep to which muscle?

• Gluteus maximus
• Iliacus
• Gluteus minimus
• Pectineus

Q3. In the posterior thigh, the posterior femoral cutaneous nerve descends primarily deep to which layer?

• Fascia lata
• Obturator membrane
• Transversalis fascia
• Pelvic diaphragm

Q4. What is the relationship of the posterior femoral cutaneous nerve to the hamstring muscles in much of the posterior thigh?

• It passes within the semimembranosus muscle
• It lies superficial to the hamstring muscles
• It passes anterior to the femur
• It lies within the femoral canal

Q5. Which sensory territory is associated with the inferior cluneal branches of the posterior femoral cutaneous nerve?

• Anterior thigh
• Inferior buttock
• Lateral leg
• Superior medial buttock

Q6. A perineal branch of the posterior femoral cutaneous nerve may supply skin in which area in a male?

• Anterior abdominal wall above the umbilicus
• Medial surface of the foot
• Glans penis as its principal sensory nerve
• Posterior scrotal region

Q7. Which feature best distinguishes the posterior femoral cutaneous nerve from the sciatic nerve in the posterior thigh?

• It provides the main motor supply to the leg
• It is the principal motor nerve to the hamstrings
• It divides into tibial and common fibular nerves
• It is predominantly a cutaneous sensory nerve

Q8. Which nerve supplies the inferior buttock through cutaneous branches rather than by innervating gluteal muscles?

• Posterior femoral cutaneous nerve
• Superior gluteal nerve
• Inferior gluteal nerve
• Nerve to obturator internus

Q9. How do cutaneous branches of the posterior femoral cutaneous nerve reach the skin of the posterior thigh?

• They travel through the inguinal canal
• They pass through the obturator canal
• They enter the femoral sheath
• They pierce the deep fascia

Q10. The posterior femoral cutaneous nerve may extend inferiorly toward which region?

• Axilla
• Carpal tunnel
• Cubital fossa
• Popliteal region