Intermediate Brachial Artery Quiz

Q1. Which muscle lies immediately anterior to the brachial artery over part of its course in the proximal arm?

• Supinator
• Biceps brachii
• Anconeus
• Triceps brachii

Q2. Which muscles form important posterior relations of the brachial artery as it descends through the arm?

• Deltoid proximally and supinator distally
• Biceps brachii proximally and pronator quadratus distally
• Triceps brachii proximally and brachialis distally
• Supraspinatus proximally and anconeus distally

Q3. How does the median nerve typically change its relationship to the brachial artery as it descends the arm?

• It passes from medial to lateral behind the artery
• It remains posterior to the artery throughout the arm
• It passes from lateral to medial by crossing anterior to the artery
• It has no relationship with the artery

Q4. Which branch of the brachial artery participates prominently in collateral circulation around the medial side of the elbow?

• Anterior circumflex humeral artery
• Thoracoacromial artery
• Ulnar collateral arteries
• Circumflex scapular artery

Q5. Which brachial artery branch accompanies the ulnar nerve toward the posterior aspect of the medial epicondyle?

• Inferior ulnar collateral artery
• Radial recurrent artery
• Anterior interosseous artery
• Superior ulnar collateral artery

Q6. Which branch of the brachial artery arises relatively close to the elbow and contributes to the periarticular arterial network?

• Inferior ulnar collateral artery
• Lateral thoracic artery
• Dorsal scapular artery
• Subscapular artery

Q7. What is the typical lateral to medial arrangement of the biceps tendon, brachial artery, and median nerve in the cubital fossa?

• Brachial artery, median nerve, biceps tendon
• Median nerve, brachial artery, biceps tendon
• Biceps tendon, median nerve, brachial artery
• Biceps tendon, brachial artery, median nerve

Q8. Which structure lies superficial to the brachial artery in the cubital fossa and helps protect it during venipuncture?

• Bicipital aponeurosis
• Flexor retinaculum
• Annular ligament
• Interosseous membrane

Q9. At approximately which skeletal landmark does the brachial artery usually bifurcate?

• Neck of the radius
• Surgical neck of the humerus
• Coracoid process
• Radial styloid

Q10. Why can the brachial artery be compressed against the humerus to help control severe bleeding from the distal upper limb?

• It runs entirely within the humeral medullary cavity
• Its course allows it to be pressed against the humerus
• It is attached directly to the skin
• It lies within the carpal tunnel