Intermediate Inferior Gluteal Nerve Quiz

Q1. From which divisions of the sacral plexus is the inferior gluteal nerve derived?

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

Q2. Which artery commonly accompanies the inferior gluteal nerve through the greater sciatic foramen?

• Inferior gluteal artery
• Dorsalis pedis artery
• Superior mesenteric artery
• Anterior tibial artery

Q3. After leaving the pelvis, where does the inferior gluteal nerve travel relative to gluteus maximus?

• Inside the femoral canal
• Within gluteus medius only
• On the deep surface of gluteus maximus
• Superficial to the skin

Q4. Which sacral plexus branch exits superior to piriformis, unlike the inferior gluteal nerve?

• Sciatic nerve
• Superior gluteal nerve
• Pudendal nerve
• Posterior femoral cutaneous nerve

Q5. Why is hip extension weakness particularly noticeable when climbing stairs?

• The task does not involve the hip
• The task requires isolated knee flexion
• The task depends only on ankle inversion
• The task requires powerful extension of a flexed hip

Q6. Which movement can gluteus maximus also assist in addition to hip extension?

• Medial rotation as its only action
• Toe extension
• Lateral rotation of the thigh
• Ankle dorsiflexion

Q7. Why does an isolated inferior gluteal nerve lesion not directly paralyze gluteus medius?

• Both muscles are supplied only by the sciatic nerve
• Gluteus medius is supplied by the femoral nerve
• Gluteus medius has no nerve supply
• Gluteus medius is supplied by the superior gluteal nerve

Q8. Which functional task can expose weakness of gluteus maximus after inferior gluteal nerve injury?

• Finger abduction
• Wrist extension
• Rising from a chair
• Toe spreading only

Q9. Why is the inferior gluteal nerve at risk in deep gluteal trauma?

• It remains inside the vertebral canal
• It passes through the tarsal tunnel
• It courses deep to gluteus maximus after leaving the pelvis
• It lies only in the anterior leg

Q10. How does the inferior gluteal nerve differ functionally from the posterior femoral cutaneous nerve?

• It supplies the anterior forearm
• It is purely autonomic
• It supplies quadriceps rather than skin
• It is motor to gluteus maximus rather than primarily cutaneous sensory