The Elbow (joints and muscles)

Megan fell asleep with her elbow resting bent on the desk. When she woke up her hand became numb and tingling. What is occurring?

• Cubital Tunnel Syndrome

• Pronator Teres Syndrome

• Wrist Drop

• Ulnar Claw

A patient falls onto an outstretched arm, resulting in a valgus force at the elbow. Which ligament would you suspect is injured? Valgus force pushes laterally so the elbow joint opens medially

• Medial collateral ligament (MCL)

• Lateral Collateral Ligament (LCL)

• Annular Ligament

• Interosseous membrane

A warehouse worker reports pain and weakness when lifting boxes with palms up. Identify the muscle most likely injured?

• Brachialis

• Biceps Brachii

• Brachioradialis

• Triceps Brachii

A client presents with pain and weakness when rotating the forearm to turn a key clockwise. Which muscle is most likely injured?

• Pronator teres

• Supinator

• Biceps brachii

• Brachialis

An office worker with medial epicondylitis reports pain when lifting a full coffee mug. Which muscle group is primarily involved?

• Wrist flexors

• Wrist extensors

• Supinators

• Triceps

Leila, a hairdresser, complains of wrist pain on the ulnar side when twisting scissors or turning keys. What structure might be injured?

• VISI and DISI

• The TFCC

• The Thenar eminence

• The Hypothenar eminence

Which carpal bones articulate with the proximal end of the metacarpal bones?

• trapezium, trapezoid, capitate, hamate

• Tapezium, pisiform, trapezoid, capitate, hamate

• Trapezium, pisiform, capitate, hamate

• So long to pinky, here comes the thumb

When looking at the dorsal aspect of the hand, what carpal bones articulate with the trapezoid bone?

• Trapezium bone proximally, scaphoid bone laterally, and capitate bone medially

• Scaphoid bone proximally, trapezium bone laterally, and capitate bone medially

• Pisiform bone proximally, trapezoid bone laterally, and scaphoid bone medially

• Capitate bone medially, trapezium bone laterally, and capitate bone medially

A client with post-traumatic wrist stiffness is unable to fully flex the wrist. Which joint contributes most to wrist flexion?

• Midcarpal joint

• Radiocarpal joint

• Distal radioulnar joint

• CMC joint

After a fall on the ulnar side of the wrist, a patient reports pain, clicking, and weakness in ulnar deviation. Which ligament is likely to be impacted?

• Scapholunate Ligament

• Lunotriquetral Ligament

• Radial Collateral Ligament

• TFCC