Intermediate Ulnar Nerve Quiz

Q1. What is the relationship of the ulnar nerve to the axillary artery near its origin?

• Within the axillary artery
• Lateral to the musculocutaneous nerve
• Medial to the axillary artery
• Posterior to the humeral head

Q2. What is the relationship of the ulnar nerve to the brachial artery in the proximal arm?

• Inside the radial groove
• Lateral to the biceps tendon throughout the arm
• Medial to the brachial artery
• Within the brachial artery

Q3. Which structure does the ulnar nerve pierce around the middle of the arm to enter the posterior compartment?

• Lateral intermuscular septum
• Flexor retinaculum
• Medial intermuscular septum
• Interosseous membrane

Q4. Which artery commonly accompanies the ulnar nerve in the distal part of the arm?

• Radial recurrent artery
• Posterior circumflex humeral artery
• Superior ulnar collateral artery
• Anterior interosseous artery

Q5. Between which two attachments does the ulnar nerve enter the forearm?

• Long and short heads of biceps brachii
• Long and lateral heads of triceps brachii
• Humeral and ulnar heads of pronator teres
• Humeral and ulnar heads of flexor carpi ulnaris

Q6. Which part of flexor digitorum profundus is supplied by the ulnar nerve?

• Entire muscle exclusively
• Medial part associated mainly with the ring and little fingers
• None of the muscle
• Lateral part associated mainly with the index finger

Q7. Which branch of the ulnar nerve supplies sensation to the dorsomedial part of the hand?

• Anterior interosseous nerve
• Dorsal cutaneous branch
• Recurrent motor branch
• Posterior cutaneous nerve of the forearm

Q8. Through which passage does the ulnar nerve enter the hand?

• Carpal tunnel
• Guyon canal
• Quadrangular space
• Radial tunnel

Q9. Which finger movement is particularly dependent on the interossei supplied by the ulnar nerve?

• Extension of the elbow
• Abduction and adduction of the fingers
• Extension of the wrist
• Pronation of the forearm

Q10. Which intrinsic hand muscle supplied by the ulnar nerve is the principal adductor of the thumb?

• Opponens pollicis
• Flexor pollicis longus
• Adductor pollicis
• Abductor pollicis brevis