Elbow Extensors Range of Motion and Weakness Effects Quiz
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Questions and Answers

Which factor may limit the range of motion of elbow extension?

  • Contact of olecranon process with olecranon fossa on posterior aspect of humerus
  • Tension of anterior radial and ulnar collateral ligaments of elbow joint
  • Tension of flexor muscles of forearm
  • Tension of extensor muscles of forearm (correct)

    • What effect can weakness of elbow extensor muscles have?

  • Inability to reach over head (correct)
  • Inability to flex the elbow
  • Inability to perform wrist supination
  • Inability to rotate the shoulder

    • What is the alternative position for grades 3, 4, and 5 weakness of elbow extensor muscles?

  • Supine position with arms extended overhead
  • Side-lying position with the affected arm elevated (correct)
  • Sitting position with the affected arm raised
  • Prone position with the affected arm behind the back

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