HAS MSS1 Exam 1 Review

What nerve does the anterior interosseous nerve branch from?

• Ulnar nerve

• Musculocutaneous nerve

• Radial nerve

• Median nerve

1. Which muscles does De Quervain’s Tenosynovitis affect?

• 1. Extensor pollicis longus & adductor pollicis longus

• Opponens pollicis & abductor pollicis longus

• 1. Extensor pollicis brevis & abductor pollicis longus

• 1. Extensor pollicis longus & adductor pollicis

What is the cause of stenosing tenosynovitis?

• Permanent shortening of palmar aponeurosis

• Synovial nodule of extensor tendon gets trapped in extensor expansion

• Synovial nodule of flexor tendon gets trapped in fibrous sheath

Answer explanation

In a supracondylar humeral fracture, what muscles pull the proximal and distal fragments?

• Brachialis pulls proximal fragment anteriorly

  Triceps pulls distal fragment posteriorly

• Biceps pulls proximal fragment anteriorly

  Deltoid pulls distal fragment posteriorly

• Triceps pulls proximal fragment anteriorly

  Brachialis pulls distal fragment posteriorly

• Deltoid pulls proximal fragment anteriorly

  Biceps pulls distal fragment posteriorly

What is the innervation of flexor digitorum profundus?

• • Radial nerve innervates lateral 1/2

  • Ulnar nerve innervates medial 1/2

• • Median nerve innervates lateral 1/2

  • Ulnar nerve innervates medial 1/2

• • Median nerve innervates lateral 1/2

  • Radial nerve innervates medial 1/2

• • Ulnar nerve innervates medial 1/2

    • Median nerve innervates lateral 1/2

What is the action of the flexor carpi radialis?

• • Abduct wrist in radial deviation

• • Adduct wrist in ulnar deviation

• • Abduct wrist in ulnar deviation

• • Adduct wrist in radial deviation

• What are the attachments of the carpal tunnel?

• • Lateral = scaphoid & trapezium

  • Medial = triquetrum & pisiform

• • Lateral = scaphoid & trapezoid

  • Medial = hamate & pisiform

• • Lateral = scaphoid & trapezoid

  • Medial = hamate & lunate

• • Lateral = scaphoid & trapezium

  • Medial = hamate & pisiform

A distal rupture of the biceps tendon would cause which Popeye's sign?

• Distal Popeye sign

• Proximal Popeye sign

Repetitive wrist extension would cause what type of epicondylitis?

• Golfer's elbow; lateral epicondylitis

• Golfer's elbow; medial epicondylitis

• Tennis elbow; lateral epicondylitis

• Tennis elbow; medial epicondylitis

What is the innervation of flexor pollicis brevis muscle?

• Median nerve

• Ulnar nerve

• Superficial head innervated by median nerve

  Deep head innervated by ulnar nerve

• Deep head innervated by median nerve

  Superficial head innervated by ulnar nerve