Intermediate Guyon's Canal Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Which structure contributes to the medial boundary of Guyon's canal?
- Radial styloid
- Scaphoid tubercle
- Trapezium
- Pisiform
Q2. Which structure is an important lateral landmark of Guyon's canal?
- Hook of hamate
- Scaphoid tubercle
- Radial styloid
- Pisiform
Q3. Which structure contributes to the roof of Guyon's canal?
- Annular ligament of the radius
- Extensor retinaculum
- Interosseous membrane
- Palmar carpal ligament
Q4. Which structure contributes to the floor of the proximal part of Guyon's canal?
- Extensor retinaculum
- Flexor retinaculum
- Dorsal radiocarpal ligament
- Palmar aponeurosis only
Q5. Into which two major terminal branches does the ulnar nerve divide in the region of Guyon's canal?
- Anterior and posterior cutaneous branches
- Anterior and posterior interosseous branches
- Superficial and deep branches
- Medial and lateral pectoral branches
Q6. Which terminal branch of the ulnar nerve is predominantly sensory in the hand?
- Superficial branch
- Anterior interosseous branch
- Deep branch
- Dorsal cutaneous branch
Q7. Which terminal branch of the ulnar nerve is predominantly motor in the hand?
- Dorsal cutaneous branch
- Palmar cutaneous branch
- Superficial branch
- Deep branch
Q8. Which muscle is supplied by the superficial branch of the ulnar nerve?
- Opponens pollicis
- Palmaris brevis
- Adductor pollicis
- First dorsal interosseous
Q9. Which structure passes through the carpal tunnel but not through Guyon's canal?
- Flexor digitorum profundus tendons
- Ulnar artery
- Superficial branch of the ulnar nerve
- Ulnar nerve
Q10. What is the relationship between Guyon's canal and the carpal tunnel?
- Guyon's canal lies superficial and ulnar to the carpal tunnel
- The two spaces have identical boundaries and contents
- Guyon's canal lies inside the carpal tunnel
- Guyon's canal lies dorsal and radial to the carpal tunnel