Intermediate Iliopsoas Quiz

Q1. Which combination of vertebral structures contributes to the origin of psoas major?

• Cervical articular processes
• Lumbar spinous processes only
• Sacral foramina only
• Vertebral bodies, discs, and lumbar transverse processes

Q2. Which neural structure forms within the substance of psoas major?

• Cervical plexus
• Brachial plexus
• Lumbar plexus
• Sacral plexus

Q3. What is the relationship of the femoral nerve to psoas major and iliacus in the pelvis?

• It descends between psoas major and iliacus
• It pierces the iliopsoas tendon
• It runs posterior to the sacrum
• It emerges from the medial border and enters the obturator canal

Q4. Which nerve characteristically emerges from the medial border of psoas major?

• Femoral nerve
• Superior gluteal nerve
• Lateral femoral cutaneous nerve
• Obturator nerve

Q5. How does iliopsoas reach the thigh from the pelvis?

• It passes superficial to the inguinal ligament
• It passes through the greater sciatic foramen
• It passes deep to the inguinal ligament
• It passes through the obturator canal

Q6. What lies posterior to the iliopsoas tendon as it crosses the anterior hip?

• Sacrotuberous ligament
• Hip joint capsule
• Patellar ligament
• Posterior cruciate ligament

Q7. What is the main function of the iliopsoas bursa?

• Reducing friction beneath the Achilles tendon
• Separating the patella from the skin
• Reducing friction at the anterior hip
• Stabilizing the lateral ankle

Q8. With the femora fixed, what can bilateral psoas major contraction assist?

• Trunk flexion
• Ankle dorsiflexion
• Scapular elevation
• Knee extension

Q9. What spinal movement can unilateral psoas major contraction assist?

• Contralateral cervical rotation
• No vertebral movement
• Ipsilateral lumbar lateral flexion
• Thoracic extension only

Q10. What contribution does iliopsoas make to the floor of the femoral triangle?

• It forms the medial boundary
• It forms the roof
• It forms the lateral part of the floor
• It forms the lateral boundary