Upper Extremity Back Muscles Quiz
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Questions and Answers

Which muscle is primarily responsible for elevating the scapula?

  • Latissimus dorsi
  • Rhomboid major
  • Serratus anterior
  • Trapezius (correct)

What is the primary innervation of the latissimus dorsi?

  • Dorsal scapular nerve
  • Thoracodorsal nerve (correct)
  • Accessory nerve
  • Long thoracic nerve

Which muscle originates from the spinous processes of T6-T12 and iliac crest?

  • Levator scapulae
  • Trapezius
  • Rhomboid minor
  • Latissimus dorsi (correct)

What is the main action of the rhomboid major muscle?

<p>Retracts the scapula (C)</p> Signup and view all the answers

Which muscle is NOT involved in the movements of the shoulder complex?

<p>Biceps brachii (C)</p> Signup and view all the answers

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