Intermediate Deep Palmar Arch Quiz

Q1. After entering the deep palm, the radial artery forms the deep palmar arch by passing generally in which direction?

• Posteriorly into the carpal tunnel
• Laterally toward the anatomical snuffbox
• Medially across the deep palm
• Proximally into the forearm

Q2. The deep palmar arch lies approximately at the level of which parts of the metacarpals?

• Heads of the metacarpals only
• Bases of the metacarpals
• Distal phalanges
• Radial head

Q3. How many palmar metacarpal arteries typically arise from the deep palmar arch?

• Five
• One
• Three
• Seven

Q4. The palmar metacarpal arteries usually communicate distally with which vessels?

• Radial collateral arteries
• Posterior interosseous recurrent arteries
• Anterior ulnar recurrent arteries
• Common palmar digital arteries

Q5. Which branches of the deep palmar arch pass through the interosseous spaces to communicate with dorsal metacarpal arteries?

• Ulnar recurrent branches
• Perforating branches
• Muscular branches of the brachial artery
• Circumflex humeral branches

Q6. Which structures generally lie superficial to the deep palmar arch?

• Dorsal interosseous muscles only
• Long flexor tendons
• Palmar interosseous muscles
• Metacarpal bones

Q7. Which artery reaches the deep palm after passing between the heads of the first dorsal interosseous muscle?

• Brachial artery
• Ulnar artery
• Radial artery
• Anterior interosseous artery

Q8. Which arterial connection links the deep palmar arch with the superficial palmar arch?

• Anterior interosseous artery joining the brachial artery
• Radial recurrent artery joining the ulnar recurrent artery
• Palmar metacarpal arteries joining common palmar digital arteries
• Circumflex humeral arteries joining the palmar arches

Q9. Which structure usually accompanies the deep branch of the ulnar artery as it passes laterally to join the deep palmar arch?

• Superficial branch of the radial nerve
• Deep branch of the ulnar nerve
• Anterior interosseous nerve
• Recurrent branch of the median nerve

Q10. Which statement correctly compares the deep and superficial palmar arches?

• Both arches are formed exclusively by the radial artery
• The deep arch is mainly radial and lies deeper and more proximally
• The superficial arch lies deeper than the deep arch
• The deep arch is mainly ulnar and lies more superficially