Advanced Brachial Artery Quiz

Q1. Which artery typically accompanies the radial nerve through the radial groove of the humerus?

• Common interosseous artery
• Radial recurrent artery
• Inferior ulnar collateral artery
• Profunda brachii artery

Q2. Which branch of the profunda brachii artery participates in an anastomosis with the radial recurrent artery near the lateral epicondyle?

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

Q3. Which terminal branch of the profunda brachii artery contributes to the posterior arterial network around the lateral epicondyle?

• Anterior circumflex humeral artery
• Inferior ulnar collateral artery
• Common interosseous artery
• Middle collateral artery

Q4. A displaced supracondylar fracture of the humerus places which major artery at particular risk?

• Subclavian artery
• Brachial artery
• Suprascapular artery
• Posterior circumflex humeral artery

Q5. Severe brachial artery injury near the elbow can contribute to ischemic damage that may ultimately produce which classic deformity?

• Winged scapula
• Mallet finger
• Volkmann ischemic contracture
• Popeye deformity

Q6. Which finding should raise concern for brachial artery compromise after a supracondylar humeral fracture?

• Diminished or absent distal pulse
• Loss of the Achilles reflex
• Isolated weakness of shoulder shrug
• Increased patellar reflex

Q7. What is meant by a high bifurcation of the brachial artery?

• Division into radial and ulnar arteries more proximally than usual
• Termination of the artery within the axilla
• Division of the artery below the wrist
• Absence of both radial and ulnar arteries

Q8. Why is recognition of a superficially positioned brachial or radial artery variation clinically important?

• It may be mistaken for a superficial vein
• It always eliminates the radial pulse
• It converts the median nerve into an artery
• It prevents blood pressure measurement

Q9. Why can arterial flow to the forearm sometimes persist despite gradual narrowing of the brachial artery near the elbow?

• The median nerve carries arterial blood around the obstruction
• The cephalic vein becomes the radial artery
• Collateral and recurrent arteries form an anastomotic network around the elbow
• The humerus contains a second brachial artery

Q10. Which description best summarizes the brachial artery?

• A superficial vessel that drains venous blood from the arm
• An artery arising from the radial artery and terminating in the axilla
• A branch of the ulnar artery confined to the forearm
• The principal artery of the arm extending from the axillary artery to the radial and ulnar arteries