Muscles and Actions of the Neck and Scapula Quiz
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Questions and Answers

Which muscle is responsible for rotation of the glenoid cavity superiorly to allow complete abduction of the arm?

  • Trapezius
  • Latissimus dorsi
  • Pectoralis major
  • Serratus anterior (correct)
  • Which part of the serratus anterior muscle inserts into the lateral lip of the intertubercular groove of the humerus?

  • Medial half of clavicle
  • Sternocostal head
  • Ori (correct)
  • Costal cartilages of 1st to 7th ribs
  • What is the nerve innervation for the Latissimus dorsi muscle?

  • Lateral pectoral nerve
  • Medial pectoral nerve
  • Axillary nerve
  • Thoracodorsal nerve (correct)
  • Which muscle is responsible for the anterior tilt of the pelvis?

    <p>Latissimus dorsi</p> Signup and view all the answers

    What is not an action of the Pectoralis major muscle?

    <p>Lateral rotation of arm</p> Signup and view all the answers

    Which part of the Pectoralis major muscle originates from the medial half of clavicle?

    <p>Clavicular head</p> Signup and view all the answers

    Where does the Latissimus Dorsi muscle insert?

    <p>Floor of the intertubercular groove of the humerus</p> Signup and view all the answers

    Which nerve innervates both Medial and lateral pectoral muscles?

    <p>Medial pectoral nerve</p> Signup and view all the answers

    What action does Latissimus Dorsi muscle perform?

    <p>Adduction of arm</p> Signup and view all the answers

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