Intermediate Wrist Joint Quiz

Q1. Which ligament reinforces the palmar aspect of the radiocarpal joint and extends from the radius toward the carpal bones?

• Palmar radiocarpal ligament
• Annular ligament
• Ulnar collateral ligament of the elbow
• Coracohumeral ligament

Q2. Which ligament reinforces the posterior aspect of the radiocarpal joint?

• Coracoclavicular ligament
• Dorsal radiocarpal ligament
• Palmar ulnocarpal ligament
• Transverse humeral ligament

Q3. The radial collateral ligament of the wrist extends from the radial styloid primarily toward which carpal bone?

• Capitate
• Scaphoid
• Lunate
• Hamate

Q4. The ulnar collateral ligament of the wrist extends from the ulnar styloid toward which carpal bones?

• Lunate and trapezoid
• Capitate and hamate
• Scaphoid and trapezium
• Triquetrum and pisiform

Q5. Which two muscles acting together are major flexors of the wrist?

• Pronator teres and supinator
• Extensor carpi radialis longus and extensor carpi ulnaris
• Flexor carpi radialis and flexor carpi ulnaris
• Biceps brachii and triceps brachii

Q6. Which muscles can act together to extend the wrist while balancing radial and ulnar deviation?

• Pronator quadratus and supinator
• Brachialis and anconeus
• Flexor carpi radialis and flexor carpi ulnaris
• Extensor carpi radialis muscles and extensor carpi ulnaris

Q7. Which combination of muscles produces radial deviation of the wrist?

• Flexor carpi ulnaris with extensor carpi ulnaris
• Pronator teres with pronator quadratus
• Biceps brachii with supinator
• Flexor carpi radialis with the radial wrist extensors

Q8. Which combination of muscles produces ulnar deviation of the wrist?

• Flexor carpi radialis and extensor carpi radialis longus
• Brachioradialis and supinator
• Flexor carpi ulnaris and extensor carpi ulnaris
• Palmaris longus and pronator teres

Q9. Which joint works with the radiocarpal joint to provide the full range of wrist flexion and extension?

• First metacarpophalangeal joint
• Proximal radioulnar joint
• Elbow joint
• Midcarpal joint

Q10. Why is ulnar deviation generally greater than radial deviation at the wrist?

• The wrist has no radial collateral ligament
• The radial styloid limits movement toward the radial side
• The scaphoid is fused to the radius
• The ulna directly blocks all radial movement